Amazing stuff, I thought it was real the first time I saw it. I work with glass so I am used to nice long looks at the stuff, a suggestion for your next project, if the glass does not have a flat base, make the base with a slight ripple effct. in real glass if the base is not machiened flat it almost always has a slight water-like ripple in it from cooling. it's extreamly dificult to compleetly get rid of it.
another fun thing i'd like to see is what you's do with glass shards!