Silkworm Guts - How to Make Stain Glass?

Silkworm guts were used for making fishing tackle, like fishing lines. You cauld make a sort of silk making robot, and then you implant the silkworm gut into it. Back in mediaeval days, when people made stain glass, they used to use the urine of red headed boys as part of the formula for making it. Red headed or ginger urine used to have magical properties.