My son has been diagnosed with trichotillomania which is obsessive hair pulling. He's pulled out his eyebrows and eyelashes, and he now has a bald patch on his head. Words can't describe how disturbing this is for me. Anyways, he does this when he is watching tv and when he's falling to sleep at night. I'm trying to think of things to get him to keep his hands busy. So far I have:

-silly putty
-stress ball
-sewing
-rubberband
-sun flower seeds
-Yo-yo

Any other ideas?