Came across a site that had some pretty funny, easy ideas...thought I'd share -
I think I just might go as either the Ceiling Fan (still cracking me up...), Devil's Advocate or most likely, the Leaf Blower.
Tickled Pink
Wear pink clothes and carry a feather.*
Piece of Gum Stuck to Your Shoe
Dress in all pink and attach a shoe to the top of your head.*
Ceiling Fan
Write "Go Ceilings!" on the front of your shirt. And don't forget to cheer!*
Melted Snow Man
Drench yourself in water and carry around two sticks, a scarf and a carrot.*
Got Milk?
Wear a sign that says "Got Milk?". Paint a milk mustache over your lip with make-up or other non-toxic white substance.*
Leafblower
Wear a baseball cap with a leaf dangling down in front of your face. When someone asks what you are, blow on the leaf.*
Head in the Clouds
Stick cotton balls all over your hat or visor.*
White Trash
Wear all white, and attach trash (i.e., milk cartons, paper, candy wrappers) all over yourself. Or step into a white trash bag overflowing with trash.*
God's Gift to Women
Find a box large enough to fit around your body. Cut some holes for your arms and head, and then cover the box with wrapping paper. Add a large bow. Attach a tag that says "TO: Women, FROM: God".*
Black-Eyed Pea
Take a fabric pen and draw or pin a giant "P" on a shirt. Put black makeup around one eye and you have become a "Black-Eyed P."*
Babysitter
Strap a baby doll to your behind and sit on it.*
Kangaroo
Tape a brown paper lunch bag to your stomach.*
Quarter Pounder
Carry a quarter and a hammer. If someone asks what your costume is, put the quarter down and pound it with the hammer.*
Sugar Daddy
Attach candy all over yourself.*
Devil's Advocate
Wear buttons and carry signs that say "Devil is #1" and "Vote for Satan," etc.*
Nudist on Strike
Dress in normal clothes and carry a sign that says "Nudist on Strike."*
MacGyver
Just carry a Swiss army knife and a roll of duct tape.*
Nickelback (The Band)
Attach a nickel to your back.*
Fortune Teller
Attach a bunch of fortune cookies to your clothes. Wear a scarf or towel wrapped around your head.*
Third Wheel
Wear a shirt with a big "3" on it, and a tire around your waist.*
Autograph Book
Wear a white shirt and pants. Carry a Sharpy pen and have people sign you!*
Butt Head
Glue cigarette butts to a baseball cap.*
Baby
Old t-shirt and a Depends diaper.*
Stick in the Mud
Wear all brown and attach a stick to your chest.*
Golf Tee
Attach a golf ball to a headband and wear it on top of your head.*
Johnny On The Spot
Wear a name tag that says "Johnny" (not necessary if your real name is Johnny). Create a circle out of cardboard or plastic, big enough to stand on. When someone asks you what you are, throw the circle on the floor and stand on it. *
Aircraft Carrier
Find a small toy airplane and carry it with you. When people asked what you are, hold it out in the palm of your hand.*
Shot in the Dark
Wear all black, and hang a shot glass around your neck.*
Spongebob Squarepants
Wear a black sweat suit and hot glue pieces of sponge to your pants. Also, wear a nametag sticker that says "My Name Is: BOB." It works even better if your name is Bob already.*
Signs
Use foil wrap to make a pointy, Hershey Kiss-shaped hat to keep the aliens from reading your mind.*
Ze-bra
Wear a bra on the outside of your shirt and attach the letter "Z" to it.*
Pot Head
Find a cooking pot from the kitchen that will fit nicely on your head.*
50 Cent (the Rapper)
Tape two quarters to your chest.*
Peter Cottontail
Wear a name tag that says "Peter," and attach a piece of cotton to your behind.*
Chia Pet
Wrap yourself in duct tape so the sticky part is facing out, then roll around on the lawn.*
Starbucks
Make some yellow stars out of paper or cardboard and pin them all over your clothes. Then take several dollar bills and pin them on also. Optional: carry a coffee mug.*
Refrigerator Magnet
Paint a shoe box black and attach it to your back.*
Peter Pan
Put a pan on your head and a "Hello My Name Is Peter" sticker on your shirt.*
Mucho DeNiro
Photocopy several pictures of Robert DeNiro and attach all over your body.*
Spice Rack
Wear an extra-large bra over your clothes. Stuff it with jars of spices.
Past Your Prime
Put a sign on your shirt that says "Sell by July 31 01" (or any date that has already passed).*
Rabbit
Attach a cottonball to your backside.*
Mucho Dinero
Attach pictures of Robert De Niro all over yourself.*
Carrot Top
Attach fake or real carrots to your top.*
Cloud
Attach cotton balls all over yourself.*
Magic 8 Ball
Wear all black. Cut a large 8 out of white cloth, cardboard or paper and pin or tape it to your back. When people ask you what you are, tell them "reply hazy, try again," or "cannot predict now." Or tell them to shake you and ask you a question.*
Swept Under the Rug
Attach a throw rug to your back or head. Carry a broom.*
Email and His Attachment
He wears a large "E" on his shirt. She wears a paperclip on her shirt.*
Self Portrait
Put a picture frame around your neck and sign your shirt.*
Black Mail
Wear all black, and attach a postage stamp to your chest.*
Chip on Your Shoulder
Dress in regular clothes, and glue a poker chip to your shoulder.*
Lawsuit
Wear a nice suit and carry a briefcase. Attach legal documents all over yourself.*
Something About Mary
Use hair gel to make a hunk of your hair stand straight up in the front.*
Pain in the Butt
Attach a bandage or large bandaid to your bottom.*
Web Pages
Glue pages from a book onto a black sweatshirt and sweatpants. Add spider webbing to your hair. Voila! Instant internet!*
Someone You Can Count On
Wear all black clothes. Cut out big, bright numbers and attach them to your clothes.*
Q-Tip
Dress all in blue, and cover a cap and your shoes with cotton balls.*
CD Burner
Just tie a computer CD around your neck and carry a lighter. When someone asks what you are, hold the lighter up to the CD.*
Pin-Up Girl
For a female only: Pin safety pins onto a solid-colored t-shirt or sweatshirt, forming a large arrow pointing up.*
Birthday Suit
Wear a suit and a birthday hat. Carry a horn or kazoo and sing "Happy Birthday" to yourself!*
Put "Hello my name is..." tags with random names all over your body.*
Feeling a Little Bored
Carry an emery board (nail file). When someone asks about your costume, "feel" the board.*
Ahead of Time
Draw a big clock on cardboard and cut a hole for your face. Staple a rubberband to the cardboard to hold it on your head. Now you are "A Head of Time."*
Well Hung
This is obviously for the man who has a large ego and hates to dress up. Wear normal clothing and hang a noose around your neck.*
"B" Keeper
Carry several bags filled with "B"s cut out of construction paper.*
Sleeping Bag
Cut arm and leg holes into a large trash bag and wear it over your body. Paint some "ZZZZZZZZZs" on your forehead and walk around looking sleepy.*
Bellybutton Lint
Take any pair of sweatpants and sweatshirt that are white on the inside. Wear the sweatpants and sweatshirt inside out. Pin a sign on yourself that says "Bellybutton Lint." For extra points, wear a black knit stocking hat with cotton balls glued to it.*
E-Mail
Dress as a man (if you are not one already!) Tape an "E" on chest. "E"-male.*
Goldfinger
Paint one of your fingers gold. Optional: dress like James Bond.*
Frankie and Annette
Wear a Frankenstein mask and carry a net (aquarium, butterfly or whatever). Or even simpler wear a nametag that says "Frankie" and carry the net.*