For my entry into Calontir's 2020 Queen's Prize competition, I tried making my own glass. This entry won the Judge's Choice vote.
When I use glass in a jewelry or lampworking project, it comes in the form of preground enamel or glass rods. I tried taking a step further down the supply chain and making my own based on Theophilus' instructions, although I wound up modifying that glass so it could melt in my kiln and branching out to try other period compositions with modern materials.
Instead of trying to convert my documentation into a blog entry this time, I'm just going to directly embed the documentation I submitted with the entry, slightly edited to include reference photos that would have been part of my display.