Dissolve 4 heaping T. Epsom salts in 1 cup of beer.
This will foam. Let set for 35 minutes.
Using a terrycloth washcloth dipped in mixture, dab over stencil designs. Wonderful for all season decorating, add 1 or 2 drops
Mixture dries to form beautiful crystals.
Washes off easily with Water. Crystals look best after 24 hours.