Capes + masks - Party Pack superhero capes and masks - Superman Batman
KR Finger Puppets by Joanne Rich: free pattern
Definitely want to make some capes from adult tee shirts. If cut the neck and add velcro for safety though. No-Sew Superhero Cape from a t-shirt. The post has a tutorial for toilet roll superhero cuffs too.
Party Pack 10 Superhero Capes/ Birthday Party Favors - Super Capes and Tutus, Superhero Cape and Mask Party Pack, [product_tags]