#claw

you grow horns and antlers of your choosing

you grow a long prehensile tail 1.5 times the length of your leg

you grow claws,fangs and blades on your forearms and shins

you grow a bile sac in your torso. this organ holds gut acid you can spit out

you grow hard scales like pangolin

you grow vestigial bird wings.they can't fly but you can add as many as you want

you grow eyes on your palms,forehead,chest,back and shoulders

your body parts can detach at the joint and be put back like a doll

you grow numerous quills,your hair becoming a mane of them

you can make any part of your body see through except your skeleton

you grow mushrooms and plants.they don't hurt you or disturb your body

your body becomes insectoid with vestigial wings,like a wasp or a dragonfly