Looks like a scalp massager, but I'm not sure. I'm also curious as to how effective that device is.
Solid selection, though. I wish mine was as good, its not even worth taking a picture of. Blue, unused sleep mask, few strips of rope, some shoe strings, couple of pairs of handcuffs, couple of paint brushes, an electric toothbrush and an old hairbrush that I never got the chance to try, so I'm not sure if its even effective haha. I tend to use a friend's tool when I play, anyway, so mine are mostly irrelevant.