1. Take one of your pens and cut off about an inch and a half. Tape whats left parallel to the pencil, leaving about 1/2in. to 1in. past the end of the pencil.
2. Take your second pen and cut 2 small holes about 1cm from each end. Make the holes just big enough to thread your rubberband through them.
3. Slide one end of the rubberband through a hole, pull it through enough to tie it twice about 2cm from the end. Then do the same for the other side.