Cool work Lobo! Thanks for the advice and encouragement, everybody. I thought I might be able to knock some edges off one of these things by scoring it with a glass cutter and hitting it just right... It shattered into a potential emergency room nightmare. I still think it must be possible to break off the edges and have nice platforms, but it will require some trial and error. I've been watching the dumpster for glass bottles, but it seems everybody's going to really thin glass. Rumor has it beer bottles destined for drinking establishments are made of thicker glass? But what I find in the parking lot on Sunday morning is pretty thin.