I can't recommend any particular one in your area, however we've been once and are going back on Sunday.
When we went before Z was only 12 weeks but they helped me put her foot prints on a mug which I then decorated for Father's Day. We are going on Saturday with H to make mugs with handprints for her Nana and Grandad.
You can make all sorts of things. I'm guessing something like ceramic tiles - which could be used as coasters - would be good as they are flat and thus easy to paint.
Apologies for lack of capital letters - Zoe has stolen my shift key 