The Butterfly Knife-Styled Space Pen from ThinkGeek “can flip and spin and write upside down and underwater and in space and it’s just plain awesome.” Available now, priced at $34.99. Video after the break.

You can do all sorts of crazy tricks with it, and unlike a real butterfly knife, you can’t cut yourself as you learn! And butterfly knives can’t write upside down or in extreme conditions, but this pen can.

[via ThinkGeek]