The New York based furniture concern creates furniture from recycled cardboard. Their campaign, The Cardboard Speaks, serves both an advertising and an advocacy function.

These little signs are cost-effective and attention-getting way to promote awareness of their laudable (although a little expensive) products. They also serve the purpose of slapping a scarlet letter on non-recycling businesses in the boroughs. Nice!

Finally, not to get too meta, but I can't help wondering if the ads themselves are eventually turned into bookshelves and playhouses.

For those who can't make out the French, they're advertising their paint recycling policy.

RONA capitalizes on a design trope in a billboard for the iPod nano.

I'm not sure this is intentional, but this ad can also serve the purpose as a funny and subtle jab at Apple's well-known less-than-green design practices.