I've seen a number zombie slaying devices cleverly disguised as shovels. The SPARtool looks like an interesting edition to this category. Check out the vid:
While I like the small design I almost wonder if that is a "jack of all trades, master of none" type product. It doesn't really do any one thing great, but a whole lot of little tasks sub par. I do like that it is made in America, and I think this could probably be something to throw in your BOB. Check it out on kickstarter. What do you guys think?