Eco-themed Halloween costume ideas

If anyone is still looking for a good costume idea for Halloween, here are some that Umbra suggested in her weekly advice column on Grist.org.  (Some of you may have already seen this, but I thought it was amusing and that it might be of interest.) :    

Al Gore bitten by polar bear. Find Al Gore mask (eBay?) or pomade hair and add cardboard armature to chin area. Attach stuffed polar animal by mouth to humorous body area of your choosing.

CFL bulb. Wear shiny white body suit and electrify hair in some way (Bride of Frank wig?). Build CFL filament around yourself, using white foam tubes, stuffed white fabric/socks, or white balloons.

Prius owner. Dress in clean, tasteful clothing and walk around with contented air, holding Prius key casually at chin level (paint small matchbox black and write "Prius" in shiny letters or, if you have actual Prius, write "Prius" on key). Stuff pockets to overflowing with money saved on gas.

Landfill. Don dun clothing with the following attached by tape or thread: lots of garbage, toy bulldozer, seagulls, trash pickers, or, for international credit, houses.

Glacier in 2050. Carry glass of water.

The nation's highways. Wear black, put yellow stripes down your middle. Add local humor with toy vehicles, signs, and figurines referencing specific transportation dilemma.

 Here's the link, if you want to read more.