Yeah Google Goggles is pretty fun to use, sometimes you'd be amazed at what it can give you. Basically it uses your phone camera to capture a picture, and then tries to match it with pictures on Google, and perform a search on that.
Doesn't work on everything, but should be able to find most things. Don't try to do a search on non-famous people though (don't just point it at yourself or your friend), unless you want to attract the attention some xmm or for your case, any small kid. It comes up with pretty interesting results, and if I'm not wrong, according to Google, I look like a cat.