I thought this might be an interesting question to post..so, what's it most recently been for you?
Tonight I was readying dd's bath and she "helped" herself to my bedroom side table drawer. It has a baby proof lock installed, but she slid her tiny little fingers in there and got out an ear plug which she then plopped into her mouth. I noticed it when she crawled to see me in the bathroom and was chewing something...All I can say is, "Ewwww!" lol