Here are some things that you can do with some squares of coloured felt.
You can spend ages sorting them into piles by colour, shade, category as E5N1 and Exile #4 have been doing for several days.
You can cut a few small pieces and make this:
And then you can see what's possible without doing any further cutting and make this:
As E5N1 and I did at bedtime yesterday.
I wonder what they will do next!