Icing your kid’s placenta is hot in Hollywood! Cindy Crawford has son Presley’s afterbirth stored in the freezer until she and hubby Rande Gerber move to a new home — where they’ll bury it under a tree. Admits Cindy: “My husband is grossed out by it!” . . . Wynonna Judd froze son Elijah’s placenta for burial under a tree . . . And Pam Anderson — waiting for an artificial koi pond to be built so she could bury son Dylan’s placenta beside it — stored it in a plastic bag marked “Do Not Eat,” behind the pickles and mustard! The ladies say it’s “good luck”!