What a sweet idea! I have actually tried this before and turned out so cute, with the exception that my peppermints kept sliding off of the styrofoam ball! Stephanie Lynn at Under the Table and Dreaming shares a great tutorial on how to make these pretty candied gems with much more success! It was created by Lor at Show, Tell, Share... who is kind enough to share her ideas!
This gives me inspiration to read up more carefully this time and try it again! Hers turned out so lovely! Go visit Show, Tell, Share... and also Under the Table and Dreaming and see how easy it is to make!