I added a hole to my stackable version of pmowes' wooly sheep (http://www.thingiverse.com/thing:474526), making it into a bead.
You can make a bracelet with some lanyard string and a simple hook (http://www.thingiverse.com/thing:16676)
Printed on a Printrbot Simple!
sheep_stackable03_bead.stl | 1.1MB |