Nice! I approve of the white tile background too.
One of these days I'll expand my domino collection, but it isn't easy to get them all. There are a few red/white smaller scale dominos
as well, if you want to make your job harder.
What about this
mysterious "cream" one? And although it isn't an original one, there was a recently produced one using a ball core that a 3x3x2 uses. Not sure which company produced it.