I carry a folding multitool, but it isn't as cool as this one that Instructables member Triumphman built. He used an angle grinder to cut the shapes out of steel, then drilled a pivot hole, smoothed and sharpened the edges (as needed) and painted it.
Tokyoflash Treasure Hunt - Win a Tokyoflash Watch of Your Choice!
Going on right now: Tokyoflash Treasure Hunt #26. Win a Tokyoflash watch and neat stuff from the NeatoShop. It's fun and easy to play: Link