I’m Supposed To Use This For What?

Have you ever seen something at the store and thought really? This happened to me a couple of days ago when I was looking for headbands for my daughter's hair. I came across this whatever you want to call it? lol To me it looks like a scrubber that I wash dishes with....

but apparently it is a little scrubber for your hair. This bobby pin, pony tail holder, scrubber combo is supposed to make the perfect bun on your head. This is one of those things that you see and just say wow, that's not even what I thought it was. lol Have you seen something at the store lately that you thought really? What is that, what is it for or supposed to do?