Often referred to as "glassblowing" - but more specifically called "Lampwork", "Flamework" or "Torchwork" - this is a type of glasswork that uses a gas-fueled torch to melt rods and tubes of clear and colored glass. Once in a molten state, the glass is formed by blowing and shaping with a variety of tools and hand movements. Early Lampworking was done in the flame of an oil lamp, with the artist blowing air into the flame through a pipe. As the modern practice no longer uses oil-fueled lamps, it is now also known as "Flameworking" or "Torchworking".
These Marbles are created with the highest quality dichroic glass color, using Torchwork techniques. Available color patterns include the spiraled "Vortex" that appears to go well beyond the back side of the marble, and the fascinating "Galaxy" pattern that looks like a dense star field.
And some of the marbles will have the added bonus of one of Eli's "critters" added to it!