Nothing says "I care" like plastering your sedan with a bunch of colorful adhesive PVC labels that read: "Outrageous Older Woman," "Give Peas a Chance" or "My Kid Beat Up Your Honor Roll Student." Really, there's nothing more all-American than the passive-aggressive practice of offending, campaigning, humoring or saying "go team!" while driving a car. The term "eco-bumper sticker" seems a bit oxymoronic, but if you want to send a message to fellow denizens on the road, it might as well be one that supports conservation or recycling rather than doing something unmentionable with a fist or with someone's mother. (Text: Matt Hickman)