Hands have become Addy's obsession lately. Hers, yours, doesn't matter. Hands are fascinating. And tasty. She always has one hand in her mouth and she's pretty sure that she can get the other one in there, too, and she loves watching you play Patty Cakes or sing "The Itsy Bitsy Spider" (only in her version, she eats the spider before he gets to the top of the water spout).
So far it's been pretty convenient--it's not like her hands can suddenly fall on the floor when she stops sucking on them. But it's also proving to be pretty messy since she has started tickling the back of her throat, which causes her to throw up.