Small metal mint tin (Ours measured roughly 2 by 2 1/2 inches. Make sure it has a hinged lid to pull a string through or around. We found ours at Target and CVS.)
String or metallic craft cord (You'll need about a 3-foot length. Be sure it's thin enough to fit around or through the tin's hinge so the lid can still close.)
Small plastic animal or fake jewels, stickers, etc.
Clean the inside of the tin. Paint the top and let it dry.
Thread the string or metallic cord around or through (depending on the type of tin) the tin's hinges. Pull both ends of the string tight, so that they fit snugly around the hinge, and then knot them together at the top.
Glue plastic animals or jewels to the top of the tin. Let it dry.