I took the plunge today and cast my first pen blank - and its a success! I made a rectangular blank mold from 1/2" HDPE for the mold. I also got my Harbor Freight paint pot to hold air for about 6 hours without losing much pressure. I did a three color pour - mixing a black die as the base color, a sapphire blue die, and a brilliant gold die for the coloring. I also added a Pearl-Ex Mica Pearl powder to the entire mix in the mold. Minimal stirring for the pour, as I wanted the colors to streak into the black. Needs a bit of refining, but I think this will make a great pen blank! Check it out -



