Question: How to flatten a bottle cap easily?
Options:
Use a pliers to bend the edges inward and place underneath a piece of carboard, bang down on the cap with a rubber mallet
Use a pliers to bend the edges outward and place atop a piece of cardboard, bang down on the cap with a rubber mallet
Answer: Use a pliers to bend the edges outward and place atop a piece of cardboard, bang down on the cap with a rubber mallet