What's for Dinner?: Take a box, at least as wide as your shoulders. Cut the top off, cut a hole in the bottom. Take an old tablecloth, cutting a hole in the middle, and place it on the box. Glue or tape it down. Then tape plastic dishes, silverwear and glasses to the top. Add a napkin, some condiments and a centerpiece Beetlejuice, Beetlejuice, Beetlejuice!: It has tons of neat costumes (that's where my son got the idea for the dead football player).
Information Highway: Dress in Black with Yellow stripes down the front.
Regular highway: ace bandage tape cut in half for white lines and used that lable makeer tape... for yellow lines... I sewed little cars and trucks onto the road and made stop signs from toothpicks... also used a caution curves... on my chest.... guess you could make a road... glue on miniture computers... (walgreens probably has them as pencil sharpeners)... then take a little jewelry box and mark it up like a dec vax.... dont forget to also include regular telephone lines... and cable TV....maybe put a couple telephone poles along your road???
An atom: Took 3 hula hoops and shoved them inside each other so it looked like this ---> * <---- from the front. I wrapped tinfoil around the hoops to make electrons. Then I wriggled inside so that two of the hoops were on each shoulder with the third circling me. Tied a fishing line to the shoulder pieces in front and back to keep it in place. I wore a black turtleneck and leggings and pasted construction paper circles with plus signs on them all over my body (protons) and plain ones for neutrons. Also made a poof out of my hair and painted my face silver for the heck of it. Great costume, and when I got sick of it, I trashed it. Group variation: go as a molecule (2 hydrogen, one oxygen) with the correct electron/proton combos.
Atomic: Get yourself some colored baloons. One color for protons and one for nutrons. Inflate them to the size of grape fruits and use a marker to put "P" or "N" on them. Tie them to string, christmas tree style and run them around your torso. As an added touch, you can get those little glo-sticks and put them on strings, too. But spin the glo-sticks around you and then you have electrons! You can really impress if you can tell people what atom you are by the number of protons you have. I did this one year and it was a big hit, as soon as people got over the idea that I was a bubble dancer or a bunch of grapes.
Spirit Of Baseball 1994: paint your face like a ghost and wear a baseball jersey, cap, and carry around a baseball bat. This was the year-long lockout season.
Rocks from Stonehenge: (this was with a group of friends at a "rock group" theme party. We stood in circles all night.)
A common cold: I'm wearing a big box painted like a kleenex box (with Puffs stenciled on the side) and a real kleenex box on my head (held on by a rubber band). Coming out of the head hole on the big box is white tissue paper. I'll be wearing a big plastic nose which will be tinted on the nostrils with red rouge or lipstick and I'll carry a wastebasket full of "used" kleenexes. Underneath I'll wear pajamas and bunny slippers. Makeup will be dark under-eye circles and maybe a few cold sores! ;)
Spoonheaad: Tape spoons to a hat and go as a Spoonhead. Works well with an apron and go as a Spoonhead Grocer.
The Night Sky: All you do is do have a black body suit. Sew on Gold or Sivler stars and a moon.
The Sun & The Moon: One (the moon) will paint her face and hair silver and paint 2 cardboard cut-outs of the moon silver. make straps to hold it up with and glue to each cut-out. Wear a black or navy shirt and leggings/thighs underneath. for the sun do the same but cut out a sun and paint it, your face, and hair gold If you have a trio of friends one of you can be a star. copper would be a great color.
20 Years Into the Future: last year I went dressed as my self 20 years in the future....I imagined what I wnated to be and wore it all...I was dressed as the world wide director of Serious Phun, an intergovernmental agency invested in preventing war and conflicts through entertainment and fun. I wore a globa map shower curtain as my cape, a deflated globe as my beret, and a groucho marx sweatshirt among other acutriments. You get the idea. Also I handed out pieces of that new biodegradable foam, and instructed people to stick them on themselves as a sort of roaming scupture. It's simple...you just lick it and stick it! Try it! It's non-toxic as far as I know.