I made this heavy paperweight by combining pieces of colored glass with molten hot glass. The bubbles just sort of happened although they taught us to poke the molten glass to get more bubbles. The piece is very heavy and not quite spherical. Hot glass is very difficult to work with!
We also learned to fuse glass together at hot glass art camp. You take small pieces of colored glass first and put them together. When they go into the oven, they fuse together.
Learning hot glass blowing (actually, we’ll do that tomorrow) is really fun even on a hot, hot day. And, as it turns out, the blowing action is more like playing the clarinet, rather than the flute. Too bad! I’ve been studying flute!