Luanne's "Fiery Voltives" photo above reminded me of a fun art project we did back in the early 2000's at my church.

Stained Glass Furnace Encouragements!

We gave each student a transparency sheet, to which they mod-podged pieces of tissue paper (red, orange, yellow, etc) to create the scene as a work of stained glass. They added "figures" in the furnace.  The key is not to use too much mod podge.

Then we had them COVER the mod-podged side of the transparency with ANOTHER transparency, sandwiching the glued tissue in between two dry sheets (making it a lot less messy to take home). 

Then we did an exercise where they suggested "slogans" and "encouragements" to the three in the furnace, which they then wrote on the transparency with a permanent sharpie

"God is Cool" was popular.
"Hold on to God when life gets hot"
etc.

To finish, we hole-punched two 'hanging holes' in the top left and right corners of the transparency, and gave them two suction cup hangers so they could fix their stained glass creation to a window a home. 

I wish we'd taken a photo of this project. It was very cool. I found this image online which "sort of" shows you what the finished product looked like minus the hangers and "slogan."