Here's how to give metal cans a mod (and musical!) makeover. Remove the lid and label from four or five empty cans, then wash and dry them. Choose cans that will nest together as a set, as shown. Use a hammer and nail to poke a hole in the bottom of each. Paint the outsides with white primer and let it dry, then cover with one or two coats of colored acrylic paint. Beginning with the largest, stack the cans. Measure a length of heavyweight string (we used cotton) equal to the height of the c...
