SNACK BOWLS FROM OLD PHONOGRAPH RECORDS
I probably don't need to mention this for obvious reasons, but be sure to use only dry snacks like popcorn, chips or pretzels. :-)
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Warm oven to 200 degrees.
Center a large record on top of an inverted round bowl. Place in oven. After a few minutes the record will droop down around the sides of the bowl.
At that time, remove it from the oven and quickly shape the edges into scallops. Let it cool.