Did you know you can get dominoes for the blind.
They have raised spots, as opposed to indented ones, and a special raised bit on the blanks so the visually impaired know what's what.
The big question is, of course, how can they tell what is on the table.
I mean it would be easy enough to feel what dominoes you have in your hand but the dominoes on the table would get in a right mess, wouldn't they?
Still, I suppose you can't discriminate, can you.............