What an odd, but cool idea! Love the pens you've show so far everyone! I have a few odd writing instruments, but the only one I could easily lay my hands on was this "roto" pen. As an Art Director and one of my company's marketing guys, I get a lot of stuff from other companys in the way of promotional material. They send us samples of things we can put our names on and hand out to customers at trade shows. This odd pen comes apart and has a little propeller inside. The top and bottom are attached by a cord, and when you place the prop in the base and pull the top, it will spin and fly up into the air. Yeah, I killed an afternoon playing with this one time. ;]

Kort Kramer - Kramer Kreations