This is an experimental plaidicino from the Hot House boys, and WOW, is it awesome. I hope they make a LOT more of these!! The colors are absolutely magnificent, and look how the light goes through the transparency of the colors and lights up the white behind it! This is astoundingly gorgeous glass, and when you get it in hand, it seriously sparkles, so much cooler than these pics can convey. A brilliant marble. It is signed with the Hot House symbol and '2014 Test'.