Thanks for visiting my online shop! Find what you're looking for yourself or great gifts for your friends. You'll find unique merchandise with my art on t-shirts, sweatshirts, mugs, stickers, and more.

From the cover of My Cosmic Brain by Michael Mathi Men's Value T-Shirt $17.89	From the cover of My Cosmic Brain by Michael Mathi Men's Long Sleeve T-Shirt $23.99	From the cover of My Cosmic Brain by Michael Mathi Men's Value T-Shirt $21.49
From the cover of My Cosmic Brain by Michael Mathi Men's Baseball Shirt $27.49	From the cover of My Cosmic Brain by Michael Mathi Men's Polo Shirt $22.79	From the cover of My Cosmic Brain by Michael Mathi Men's Classic T-Shirt $26.39
From the cover of My Cosmic Brain by Michael Mathi Men's Ringer T-Shirt $19.19	From the cover of My Cosmic Brain by Michael Mathi Men's Value T-Shirt $21.59	From the cover of My Cosmic Brain by Michael Mathi Men's Long Sleeve T-Shirt $29.99
From the cover of My Cosmic Brain by Michael Mathi Men's Classic T-Shirt $29.99	From the cover of My Cosmic Brain by Michael Mathi Men's Deluxe T-Shirt $35.99	From the cover of My Cosmic Brain by Michael Mathi Men's Hooded Shirt $35.99
From the cover of My Cosmic Brain by Michael Mathi Men's Comfort Colors® T-Shirt $29.99	From the cover of My Cosmic Brain by Michael Mathi Men's Football T-Shirt $29.99	From the cover of My Cosmic Brain by Michael Mathi Men's Baseball Shirt $29.99
From the cover of My Cosmic Brain by Michael Mathi Men's Polo Shirt $29.99	From the cover of My Cosmic Brain by Michael Mathi Men's Deluxe T-Shirt $35.99	From the cover of My Cosmic Brain by Michael Mathi Men's Eco Sport T-Shirt $34.79
From the cover of My Cosmic Brain by Michael Mathi Men's Eco Sport T-Shirt $38.39	From the cover of My Cosmic Brain by Michael Mathi Women's Value T-Shirt $17.89	From the cover of My Cosmic Brain by Michael Mathi Women's Value T-Shirt $21.49
From the cover of My Cosmic Brain by Michael Mathi Women's Value T-Shirt $26.39	From the cover of My Cosmic Brain by Michael Mathi Women's Long Sleeve T-Shirt $29.99	From the cover of My Cosmic Brain by Michael Mathi Women's Long Sleeve T-Shirt $25.19
From the cover of My Cosmic Brain by Michael Mathi Women's V-Neck T-Shirt $19.19	From the cover of My Cosmic Brain by Michael Mathi Women's V-Neck T-Shirt $25.19	From the cover of My Cosmic Brain by Michael Mathi Women's Plus Size Scoop Neck T-Shirt $29.99
From the cover of My Cosmic Brain by Michael Mathi Women's Plus Size Scoop Neck T-Shirt $31.19	From the cover of My Cosmic Brain by Michael Mathi Women's Plus Size V-Neck T-Shirt $29.99	From the cover of My Cosmic Brain by Michael Mathi Women's Plus Size V-Neck T-Shirt $31.19
From the cover of My Cosmic Brain by Michael Mathi Women's Maternity T-Shirt $29.99	From the cover of My Cosmic Brain by Michael Mathi Women's Maternity T-Shirt $29.99	From the cover of My Cosmic Brain by Michael Mathi Women's Racerback Tank Top $21.59
From the cover of My Cosmic Brain by Michael Mathi Women's Long Sleeve Maternity T-Shirt $32.39	From the cover of My Cosmic Brain by Michael Mathi Women's Long Sleeve Maternity T-Shirt $32.39	From the cover of My Cosmic Brain by Michael Mathi Women's Plus Size Long Sleeve T-Shirt $35.99
From the cover of My Cosmic Brain by Michael Mathi Women's Plus Size Long Sleeve T-Shirt $35.99	From the cover of My Cosmic Brain by Michael Mathi Women's Deluxe T-Shirt $35.99	From the cover of My Cosmic Brain by Michael Mathi Women's Hooded Shirt $35.99
From the cover of My Cosmic Brain by Michael Mathi Women's Football T-Shirt $29.99	From the cover of My Cosmic Brain by Michael Mathi Women's Baseball T-Shirt $29.99	From the cover of My Cosmic Brain by Michael Mathi Women's Comfort Colors® T-Shirt $26.39
From the cover of My Cosmic Brain by Michael Mathi Women's Plus Size Football T-Shirt $32.39	From the cover of My Cosmic Brain by Michael Mathi Women's Classic T-Shirt $26.39	From the cover of My Cosmic Brain by Michael Mathi Women's Classic T-Shirt $29.99
From the cover of My Cosmic Brain by Michael Mathi Women's Deluxe T-Shirt $35.99	From the cover of My Cosmic Brain by Michael Mathi Women's Eco Sport T-Shirt $34.79	From the cover of My Cosmic Brain by Michael Mathi Women's Eco Sport T-Shirt $38.39
From the cover of My Cosmic Brain by Michael Mathi Men's Crewneck Sweatshirt $35.89	From the cover of My Cosmic Brain by Michael Mathi Men's Hooded Sweatshirt $41.99	From the cover of My Cosmic Brain by Michael Mathi Men's Hooded Sweatshirt $41.99
From the cover of My Cosmic Brain by Michael Mathi Men's Zip-Up Hoodie $47.99	From the cover of My Cosmic Brain by Michael Mathi Men's Zip-Up Hoodie $47.99	From the cover of My Cosmic Brain by Michael Mathi Men's Crewneck Sweatshirt $35.99
From the cover of My Cosmic Brain by Michael Mathi Women's Zip-Up Hoodie $41.99	From the cover of My Cosmic Brain by Michael Mathi Women's Hooded Sweatshirt $41.99	From the cover of My Cosmic Brain by Michael Mathi Women's Hooded Sweatshirt $41.99
From the cover of My Cosmic Brain by Michael Mathi Women's Zip-Up Hoodie $47.99	16 oz Stainless Steel Travel Mug $26.40	From the cover of My Cosmic Brain by Michael Mathi 1.0L Stainless Steel Water Bottle $17.99
From the cover of My Cosmic Brain by Michael Mathi Shot Glass $11.99	From the cover of My Cosmic Brain by Michael Mathi Drinking Glass $19.19	From the cover of My Cosmic Brain by Michael Mathi Stainless Steel Flask $20.39
From the cover of My Cosmic Brain by Michael Mathi 17 oz Latte Mug $22.79	From the cover of My Cosmic Brain by Michael Mathi Beer Mug $25.19	From the cover of My Cosmic Brain by Michael Mathi Insulated Wine Tumbler $29.99
From the cover of My Cosmic Brain by Michael Mathi Apron $20.39	From the cover of My Cosmic Brain by Michael Mathi Wall Clock $29.89	From the cover of My Cosmic Brain by Michael Mathi Apron $21.59
From the cover of My Cosmic Brain by Michael Mathi Large Puzzle $35.99	From the cover of My Cosmic Brain by Michael Mathi Canvas Tote Bag $17.89	From the cover of My Cosmic Brain by Michael Mathi Canvas Lunch Bag $15.59
From the cover of My Cosmic Brain by Michael Mathi Zipper Pouch $21.59	From the cover of My Cosmic Brain by Michael Mathi Reusable Grocery Bag $17.99	From the cover of My Cosmic Brain by Michael Mathi iPhone 8/7 Plus Tough Case $35.99
From the cover of My Cosmic Brain by Michael Mathi iPhone X/XS Tough Case $41.99	From the cover of My Cosmic Brain by Michael Mathi iPhone X/XS Slim Case $39.59	From the cover of My Cosmic Brain by Michael Mathi iPhone XS Max Tough Case $41.99
From the cover of My Cosmic Brain by Michael Mathi iPhone XS Max Slim Case $39.59	From the cover of My Cosmic Brain by Michael Mathi Samsung Galaxy S9 Tough Case $41.99	From the cover of My Cosmic Brain by Michael Mathi Samsung Galaxy S9+ Tough Case $41.99
From the cover of My Cosmic Brain by Michael Mathi Samsung Galaxy S10 Tough Case $41.99	From the cover of My Cosmic Brain by Michael Mathi Samsung Galaxy S10+ Tough Case $41.99	From the cover of My Cosmic Brain by Michael Mathi Samsung Galaxy S20+ Slim Case $39.59
From the cover of My Cosmic Brain by Michael Mathi Samsung Galaxy S20 Ultra Slim Case $39.59	From the cover of My Cosmic Brain by Michael Mathi iPhone 12 Tough Case $41.99	From the cover of My Cosmic Brain by Michael Mathi iPhone 12 Slim Case $35.99
From the cover of My Cosmic Brain by Michael Mathi iPhone 12 Pro Tough Case $41.99	From the cover of My Cosmic Brain by Michael Mathi iPhone 12 Pro Slim Case $35.99	From the cover of My Cosmic Brain by Michael Mathi iPhone 12 Mini Tough Case $41.99
From the cover of My Cosmic Brain by Michael Mathi iPhone 12 Mini Slim Case $35.99	From the cover of My Cosmic Brain by Michael Mathi iPhone 12 Pro Max Tough Case $41.99	From the cover of My Cosmic Brain by Michael Mathi iPhone 12 Pro Max Slim Case $35.99
From the cover of My Cosmic Brain by Michael Mathi iPhone 8/7 Plus Slim Case $35.99	From the cover of My Cosmic Brain by Michael Mathi Samsung Galaxy S21+ Slim Case $39.59	From the cover of My Cosmic Brain by Michael Mathi Samsung Galaxy S21 Ultra Tough Case $41.99
From the cover of My Cosmic Brain by Michael Mathi Samsung Galaxy S21 Ultra Slim Case $39.59	From the cover of My Cosmic Brain by Michael Mathi iPhone 13 Tough Case $41.99	From the cover of My Cosmic Brain by Michael Mathi iPhone 13 Slim Case $35.99
From the cover of My Cosmic Brain by Michael Mathi iPhone 13 Pro Tough Case $41.99	From the cover of My Cosmic Brain by Michael Mathi iPhone 13 Pro Slim Case $35.99	From the cover of My Cosmic Brain by Michael Mathi iPhone 13 Mini Tough Case $41.99
From the cover of My Cosmic Brain by Michael Mathi iPhone 13 Mini Slim Case $35.99	From the cover of My Cosmic Brain by Michael Mathi iPhone 13 Pro Max Tough Case $41.99	From the cover of My Cosmic Brain by Michael Mathi iPhone 13 Pro Max Slim Case $35.99
From the cover of My Cosmic Brain by Michael Mathi PopSockets PopGrip® $17.99	From the cover of My Cosmic Brain by Michael Mathi Notebook $11.39	From the cover of My Cosmic Brain by Michael Mathi Framed Ceramic Tile $10.19
From the cover of My Cosmic Brain by Michael Mathi Wall Tapestry $43.19	From the cover of My Cosmic Brain by Michael Mathi 8x10 Canvas Print $53.99	From the cover of My Cosmic Brain by Michael Mathi 12x12 Canvas Print $71.99
From the cover of My Cosmic Brain by Michael Mathi 20x24 Canvas Print $143.99	From the cover of My Cosmic Brain by Michael Mathi Photo Wall Tile $15.59	From the cover of My Cosmic Brain by Michael Mathi Rectangle Magnet (Pk of 100) $167.99
From the cover of My Cosmic Brain by Michael Mathi Yard Sign $17.99	From the cover of My Cosmic Brain by Michael Mathi Sticker (Square 50 pk) $71.99	From the cover of My Cosmic Brain by Michael Mathi Black Baseball Cap $17.99
From the cover of My Cosmic Brain by Michael Mathi 11 oz Ceramic Mug $13.19	From the cover of My Cosmic Brain by Michael Mathi Trucker Hat $13.19	From the cover of My Cosmic Brain by Michael Mathi 15 oz Ceramic Large Mug $17.99
From the cover of My Cosmic Brain by Michael Mathi Baseball Cap $17.99	From the cover of My Cosmic Brain by Michael Mathi 20 oz Ceramic Mega Mug $20.39