I was sifting through crap to 3d print and saw this little device. Obviously not for everyone, but I thought I would share.
http://www.youtube.com/watch?v=_W7sB6rgBDI (http://www.youtube.com/watch?v=_W7sB6rgBDI)
(http://thingiverse-production-new.s3.amazonaws.com/renders/57/43/96/04/7c/pic2_preview_featured.jpg)
http://www.thingiverse.com/thing:430794/ (http://www.thingiverse.com/thing:430794/)