With a great routine from Craig Petty you get a small DVD wallet and the DVd's which all change from silver on both sides to ,red, yellow or green when they are inserted into a plastic DVD wallet and a coloured ribbon threaded through the middle. This is a stunning visual effect and furthermore takes up a tiny amount of storage space and yet it can play in a large hall. The wallet is empty at the start and the end. You could use a paper wallet and rip it up at the end.