How much would you pay for a miraculous pen that's guaranteed to never roll off a table? What's that you say? Maybe a couple of bucks because that's really only a problem that plagues ship captains, students with wonky Ikea desks, and people who live directly on fault lines? It's a good thing the makers of this Yulasha pen embedded with an off-center weight are only asking three dollars for it then. [Nikkei via Damn Geeky]