I have been playing with acetate (aka "window sheets") and had one of those happy accidents while experimenting, so I wanted to share!
I stamped an image onto the front of the acetate with black StazOn. Then I "painted" the back of the image with a "paste" made from Pearl-Ex mixed with Crystal Effects. The CE dries really fast, so I only mix a small amount of color at a time...about a dime-sized puddle of CE (or less) with just enough PE to make the sticky "paste." I painted it with a small watercolor brush; work fast and then wash the brush with some soap and water.
So far, I have done the butterfly from Botanicals and the dragonfly and a butterfly from Wonderful Wings. (I'm thinking that fall stamps would be beautiful done in the golds/coppers...) This use of PE is very beautiful and sooooooo easy! Give it a try!

Melissa