Download these free printable Superhero masks for hours of fun and imaginative play. Print on paper or card stock, cut out mask including eyes. Hole-punch holes on either side of mask. Reinforce string holes by placing a piece a scotch tape over the hole, then push through the hole with a small hole punch, a toothpick or other pointy instrument. Attach elastic string by tying ends of string to both holes and your superhero is ready to go!