New HAT gui help?

Remember the easter egg hunts. And how you had a look with a gui of the ones you captured and the ones you didnt. Well Im working on that just instead of eggs Im using hats and I want it to work so well that if you have captured it, you can go into the gui click on it and wear it. (So Im working on a gui where you can capture hats and when captured wear them). Any gui's that will help me get started on this. Or any help?