It's a uterus!!! It's from www.iheartguts.com, and I love it!!! The tag says: "When it's that time of the month, you may not like your uterus much, but hey, you wouldn't be here without one, so give props to this special reproductive organ. Besides, if you think cramps are bad, you should try childbirth." Thanks Tishi, I will cherish it always! It makes me smile just looking at it - what a happy uterus!!!