Things You'll Need:
- Sponges
- Epsom Salts
- Cotton Swabs
- Cotton Swabs
- Epsom salts
- Sponges
- 1 can flat beer
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Step 1
Dissolve a few tablespoons of Epsom salts in a can of flat beer.
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Step 2
Use a cotton ball to dab the mixture onto clean windows. Treat only the corners for a realistic look.
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Step 3
As the mixture dries, it crystallizes.









