I had a Domino Duh! moment....
Barry Irby
I got a huge box of 16" long 3/8" by 7/8" sticks of maple that have radiused edges for nothing. About a thousand pieces.
I tested them as replacements for 10mm dominos. They are just a hair loose. I checked with Festool about a 3/8 bit. No help. Checked with one of the after market companies and they inquired about regrinding a 10mm down enough to make it work, but they don't want to do just one or two.
Then it dawned on me. Rather than have a bit made, I could just cut my stick down to 8mm. Duhh
So I did. Ran a few of them through the planer and cut them to length. Made about 400 dominoes in about an hour. Did not put a dent into my stash.