The Click Knife from fiskars !
I found this little guy at Biglots with my girlfriend and I have to say it was quite the find for a buck. So what is it you ask? Well, what it does is act like a pen-like retractable blade. What! yeah for real! On the other side of the of the "pen" there is a little orange button that will release the blade back into the cartridge, Brilliant! If you see one of these you should definitely pick one up for your creative arsenal. =)