I saw these on Happy Together and immediately wanted to make them for our girls. What a neat idea! Now, the girls have not actually seen these yet (they will most likely be part of a birthday present), but I wanted to share the idea with everyone because they are super cute and easy to make. You can print out the pattern and see the whole tutorial on her website. You pretty much just need felt, a good pair of sissors, and some velcro.
(I ran out of velcro... need to finish these, but wanted to show off all of the awesome pieces of felt I found at Hobby Lobby)