Tear the colored tissue paper into small, varying-sized pieces. Use lighter colors, such as yellow, pink, and light blue.
Have your child carefully press the torn pieces of tissue paper onto the exposed sticky area of the contact paper. Encourage them to overlap the pieces to cover the entire sticky square, creating a stained-glass effect.
Glue the black silhouette piece in the center of the frame, pressing it firmly onto the tissue paper. This step seals the edges of the tissue paper, creating a clean, framed window look.