Hey, what's a really cool hand tool or measuring tool that I can get for my dad for Christmas? He likes being handy, and I'm fairly oblivious to that kind of stuff. I know, I'm asking very late in the game. If I can buy it on Amazon.com, all the better. I can still get it in time if I order through them. So if you have any ideas for cool little tools that he may not have, I would appreciate your input. Thanks!

I left out power tools simply because I don't think I have it in the budget. I think I can get away with up to $100, but that's stretching it. Okay, so I'm a cheap son, but I still plan on getting my parents a nice TV at some point next year.