Making a stained glass kaleidoscope. Soldering techniques.
No, I am not being paid to advertise Clarity Glass. However, I have to give them credit for the design.
You can get the mirrors and other kaleidoscope kits and parts here:
http://www.clarityglass.com/kaleidoscope-supplies.asp
More glass cutting information from Delphi Glass: https://www.youtube.com/watch?v=UTHs2wLQpAs