there's a fabulous story in "babycatcher" about a midwife who saved an unusual placenta to share with other midwives... she spread it out on a cookie sheet and covered it with foil to freeze. a few days later, she comes home to an odd-smelling house. seems her teenage son put the frozen "pizza" in the oven to bake. once she quit laughing and found him, he was in the fetal position in the den and not speaking to her!
another placenta story... i was doula for a wonderful woman who had me at her VBAC birth, and afterwards she was starving for a burrito from the local cantina, so of course that's what we got for her. we got burritos all around, but they're huge... i could only eat half of mine. i rewrapped it in foil, and headed back to my boyfriend's house (i knew he loved them, and would finish it off for me). as i handed the packet to him, i mentioned that she had had an unusually shaped placenta. his eyes opened wide and he stared at the foil-wrapped warm object in his hands with absolute and complete horror. when i realized he thought i'd handed him the placenta, i just about died! he still hasn't really forgiven me (nor does he believe i didn't do it on purpose).
as for this baby, i'm not sure what we'll do. probably bury it under a tree, in the front yard to avoid dog diggage. we'll be moving in a couple of years, so i wish i could plant it in a container with a young tree, but i think it probably needs the microbes and earthworms and all the things the ground can give it to break it up right.