I made these three marbles last night using the new "bump" marble mold I got at Blue Moon Glassworks in Austin. Jim, thank you so much for getting that mold - "Bumpy" is my new favorite. If you want to see it in action, come to the Fireflies meeting at Blue Moon Glassworks on August 28th. I will be doing a demo on marble making there. We'll see how many times I drop the marble off the punty. :)