Happy hormones all together! New enamel pins, from left to right: Testosterone, Insulin and Estrogen.

Because we are total nerds, Testosterone boasts a molecular model beard and Estrogen is sporting the molecular structure for estradiol, one of three types of estrogen made by humans. We especially love the beautiful form of the amino acid chain that comprises Insulin. Get in on this nerdy fashion action!

Please meet the latest member of the I Heart Guts family -- our penisAdjustable neck pillow turns your penis into a comforting and supportive friend during travel. Convenient foreskin pocket stores your phone and earbuds — or whatever else you want to stuff in there. Make your penis erect or flaccid in an instant — it’s adjustable! Great for sex education demonstrations + perfect conversation-stopper on a plane or train. Person Next To You: "Hey, what's that around your neck?" You: "It's a Penis." End of conversation! Informative booklet hangtag is crammed with information all about the penis, hilarious art and foreskin facts. Extends to 18" long x 8" wide x 3.5" tall. This flexible neck pillow contains an adjustable rod that is not considered safe for kids under age 14. Use by children under age 14 requires adult supervision.