I am sure everyone has seen these made, but
have you ever made one? They actually work pretty good.
What you need:
2 gallon plastic freezer bags
2c water
1c rubbing alcohol 70%
Fill the plastic freezer bag with the alcohol and water.
Try to get as much air out of the freezer
bag before sealing it shut.
Place the bag filled with the liquid into the second
freezer bag just as a barrier.
Leave the bag in the freezer for at least an hour
before you go to use it. When you store it in the
freezer try to keep it flat.
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