DLTK's Holiday Crafts for Kids
Halloween Costume Pieces
  

Aprons

This is a ladybug pattern apron, just change the colors and remove the spots as you see fit.

Capes and Cloaks
(includes no sew version)

Crowns

Paper Crown
or
Princess Crown

Gown or Robe

  
Homemade Makeup
  

Masks

(Butterfly)  (Eagle)  (Jack-O'-Lantern)  (Flower)  (Lion)  (Tiger)

Age 3+

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.

Pom Poms

Shields - Paper Mache 

Shirts

Skirts
easy directions.  Use for mini skirt or long skirt

Skirts:  Petal Skirt

Treat Bags you can make!

(an assortment of fabric treat bags for trick or treating, milk carton treat bags for heavy duty gifts, and paper treat bags for giving out at daycare, school or a party)

  Wings - Coat Hanger