Cutting, Foiling, and Fluxing each piece individually.

This is a close up picture of several of the mauve and silver/grey pieces already foiled. This involves pressing around the edges a copper colored tape with adhesive on the back. The petroleum jelly-like flux is rubbed onto each piece, which allows the solder to adhere to the surface of every edge. This enables each piece to be soldered together.
Here is a close-up of all the silver/grey glass cut and organized before the foiling process begins.