Zazzle have this pretty cool promotion going on at the moment where they will plant a tree for every t-shirt sold (as long as you enter the code: PLANTATREE09). OK, so Zazzle won’t plant the trees themselves but the result is the same. Until Arbor Day (April 24) Zazzle will donate one dollar for every shirt purchased to the American Forests Global ReLeaf Program and apparently $1 is enough for the American Forests to plant a tree.
When you read the blurb it is a little deceptive. It sounds like every shirt that is sold will contribute a dollar but that isn’t the case. You have to remember to add the above mentioned code during checkout. I don’t know if you can use it in conjunction with other codes.