DLTK's Craft for Kids
Halloween Mask Crafts

I think the butterfly and eagle masks would be great for a super hero to wear.  If making the masks for trick or treating, I advise you put them on a stick and allow the children to hold them up to their face at the door.  It is much safer to walk around without a mask on.

Paper Masks Butterfly Eagle Flower Jack-O'-Lantern Lion
Paper Plate Masks   Animals   Cow Dog Elephant    Fox  Goat  Hippopotamus  Lion   Monkey  Panda  Parrot  Racoon  Skunk  Tiger  Zebra.   Frankenstein.   Monster (alien).   Pirate.   Vampire.   Witch