Paint cans with primer on outside. Let dry. (This may be done before cans are given to girls).

Paint cans with darkest shade of orange paint.

When dry, turn can so that open side is up and paint two white circles on what will be the front in the place where the eyes will normally be. Allow to dry.

Paint two black pupils within the white circles.

With the black, paint the smile, frown, etc. below the eyes.

With the lighter orange, sponge randomly over the remaining orange paint.

With sharpie marker, outline the eyes.

When all paint is dry, it may have an optional coat of varnish applied to seal and preserve it.

With wire and pliers attach one end to the hole in the side of the can and twist to secure.

With pliers add some twists to the wire to give it an old look.

Attach the other end to the other hole in the can.