Small hexagonal tiles (Coney Hall BR4)

I have a heavy box of about 1200 little stone like hexagonal tiles. In addition there are about 125 black hexagonal stone tiles, the same size but with two different thicknesses. Plus there is a box of mixed grey, black and white half tiles that match.
See photos for actual size of each one.

Any use to anyone or anyone know a school or art college that could put them to some artistic use?

Fair Chance Policy: I’ll wait before choosing a recipient to give more people a chance to reply.