Over at the AntiCraft blog they have a pattern for not only a knitted uterus, but the *ahem* entire set of female reproductive organs. And it's also a purse!
Brenda Dayne mentioned it in episode 28 of Cast On.
The pattern and hilarious photographs can be found here.
I personally found the project funny and harmless but please don't click if you believe you're likely to be offended by a knit reproductive system..