White paint, other colors as well
20 gauge silver wire
Step 1: Preparing the Bottle Caps
Take the hammer and bottle caps outside. Starting with the wrong side facing up, flatten the bottle cap. Flip it over, and flatten some more.
Step 2: Painting the Bottle Caps
When they're dry, paint them again with the color of your choice.
Step 3: Adding the Wire and Earring Parts
Put one end of a piece of wire through the loop of an earring piece so that one side is longer than the other.
Cross the wire over each other under the loop of the earring piece.
Take the wire and loop it through the earring piece one more time to hold it in place.
Thread the shorter end through one of your bottlecaps and twist the end of the wire up into the spiral. Repeat to the other end of the wire, and you're done with the first earring!
Finish the second one, and you have a pair of trash-turned-treasure earrings!