If you love science cartoons, you'll love Mark Heath's No Brow Cartoons! Mark, who also drew the nationally syndicated Spot the Frog comic strip till 2008, is kind enough to allow us to adapt his awesome cartoons into T-shirt designs available from the NeatoShop: Link
NEATOSHOP'S BLACK FRIDAY SALE
Save up to 25% off ALL T-shirts from the NeatoShop! Hurry - sale ends Nov 29, 2015.