Friendship Bracelets?

When Taft came home from Preschool today, he had on a pink yarn bracelet.  When I asked him about it, he quickly showed me the navy blue one on his ankle to match.  Miss Erin said that when she started putting them on the girls in the class, all the kids wanted one.  I just hope that he lets me cut it off when it gets to bath time.

UPDATE:  He would not let me take them off and he is in bed with them on.