First..let me apologize because I believe I may have first heard about the
possibility of using coffee filters to make stained-glass paper projects
from someone on this list several years ago. So, if someone deserves the
credit...do step forward. However, I have been having fun with this project
each year with all my elementary art classes since. I have an instructional
with many images to follow up on Wetcanvas.com which you can check out.