As part of the Toys to Think With project, we built several strings of Programmable Beads: computational jewelry that children (of all ages) can play with and learn from. Each bead is a tiny computer, able to talk to its neighbors and to change color. The Programmable Beads were an attempt to extend classic bead play activity to include exploration of dynamic patterns and we hoped that Programmable Beads, like the non-programmable kind, would be particularly attractive to girls, as girls as a group have usually been under-served by developers of technology.