Beech wood discs (New Wortley LS12)

Unusual request, im looking for some beech wood, preferably discs of about 10-11cm across.
Im starting a new hobby of carving designs into wood, but need a load to practice on.
If anyone can help, would be much appreciated, im based in New Wortley, if not too far i can collect mon-thurs evenings after 5pm. Daytime fri-sun.

Thanks in advance.
Ps, it does need to be beech.
Dont mind if has imperfections on one side.