I'm planning on doing a Marching Band/ সঙ্গীতানুষ্ঠান band made out of ডিজনি characters. How should I do it?

Should I allow people to choose from ALL ডিজনি চলচ্চিত্র অথবা a select few? Should I do a poll? Answers? Both? Should I just pick them myself? Should I select a few movies/ franchises to use? I know the idea is a little far fetched and stupid, but I want to combine two of my পছন্দ things, band and ডিজনি (I'm in a marching band and সঙ্গীতানুষ্ঠান band) but I don't know how!