Pirate
Start with a bandana around your head. Boots are very helpful but you can make boot tops by wrapping dark fabric around your lower leg flapped over at the top. Girls:wear a skirt with a ragged bottom. Boys: either tuck some loose pants into your boots, or cut the bottom into a ragged edge. Wear a loose shirt unbuttoned at the top, with a vest (it's easy to make a vest by cutting up an old shirt). Wrap a piece of fabric around your waist for a belt.
Mummy
Wrap yourself in white bandages (rolls of gauze). Use splotches of green paint for "mold". Use white make-up on face with "age lines" drawn on. The stiff-legged gait works perfectly.
Spider
For the legs grab some cheap black hose, stuff with any thing dark and light weight. Either sew, or staple to keep stuffing from falling out. Pin to clothing, add a little make-up.
Black Bat
Using a black umbrella and tights, rip the umbrella in half. Discard the center and innards of the umbrella. If you are fancy you can sew the edges of the umbrella to the back of the body. If you don't have the time to sew the umbrella you can always safety pin it.
Robot: Cardboard box with holes for arms and legs. Box for head. Pie plates glued to front for headlights. Light sticks for antennae. Use silver paint or aluminum foil to decorate!
Skeleton: Black leotard and tights. White tape or chalk for ribs and bones. White makeup on face with black eyes.
