I bought mine from Amazon.I like the results also. Found a seller on Etsy. Is that where you got yours?
Larry
I happened to see it in a casting video. After the resin cures, it pulls right off the cup, made of silicone.I didn't know such a thing existed. The professional casters probably knew about these long ago.
Should make vertical rod casting much easier than trying to hold multiple cups in each hand.
Thank you for posting about it, Ken. And the blanks look great.