With the oxygen on board, he can now get hotter temperatures, and make bigger things - like art marbles! (To see the sorts of things he's aspiring to make, check out this site - or search on "art marble" for a ton more.) These are hand-crafted, so getting them spherical is quite a trick. He's improving each time! I thought you'd like to see a few (so we can say we knew him before he got famous ;) ...
This is the largest one so far, about as big as a 50¢ piece (Australian).
This is a little one, can you see the swirl of red beneath the glittery stuff, and the 'turbulent' edge of black at the surface? This sort of design is called a 'galaxy' marble.
A chip of dichroic glass sits inside this one, and looks a bit like an opal.
Another swirly galaxy type marble, with a glaze of frit (the reddish stuff).
And his first attempt at a flower marble!
They're rather tricky to photograph, always best seen when held up to the light, and looked at from all angles! But hopefully this gives you a bit of an idea.
In a couple of weeks he's having a full weekend of private tuition with renown glass artist Peter Minson ... this is basically his tertiary education, and he's launching into it with a passion!