ThinkGeek sells a $13 stainless steel Butterfly Knife Multitool with a flat-head screwdriver, hex-head wrenches, wire stripper, and bottle opener. It's great for practicing your wrist-action without slicing off your fingers, but still might get you shot if a trigger-happy cop sees you produce it from your pocket during a tense standoff.
Sure, you could keep a multi tool on your belt and be the guy that everyone turns to when they need to open a bottle, strip a wire, saw through something, tighten a screw, or turn a hex-head. Or you could be that exact same person but with added flair! Rush to anyone's aid, flip out your Butterfly Knife Styled Multi Tool, pull off some sweet butterfly knife moves, and save the day. Dang, it feels good to be a hero.
This stainless-steel multi tool features a small saw, flat-head screwdriver, two hex-head wrenches, a wire stripper, and a bottle opener (for when you finally get thirsty Fixing All The Things). The butterfly portion of the tool is styled exactly as you'd think it would be and features a metal clasp to keep you from accidentally multi tooling things in your pocket.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.