This weeks Magic Crystal Experiment: Reverse Crystals on a diagonal.
Got some clear Plexiglas,stripped the protective paper off one side,
applied different widths of masking tape on a diagonal,then scuffed between the tapes with 120 grit.Peeled off the tape,then sprayed
the Magic Crystal solution on.
It looked like this when dry:

The brown color is the protective paper on the other side.
Now dust on a few coats of grey primer,let dry,then rinse and scrub to remove the crystals.It will look like this:
Could have used any color for the final coat,but I chose Krylon High Temperture Silver.A couple even coats will do.When dry,peel the protective paper off the other side,and it looks like this: