Paint an embroidery hoop in your child's favorite color. Cut the outline of a butterfly -- or any other shape -- from cardstock, to fit inside the hoop.
Place the butterfly onto a piece of clear contact paper, sticky side up. Let your child tear up colored tissue paper to stick onto the wings. When you're done, place a sheet of tissue paper over the butterfly and add another layer of contact paper, sticky side down.
Place inside the hoop and trim the edges. Hang with a ribbon near a sunny window.