Google is offering a free set of stickers which will only cost you postage to receive. According to the Google blog site, if you send in a request with a postage [43 cents], the stickers are yours for free. The stickers are an assortment of items.
In addition Google also states that:
So how do you get your stickers? We may be all about speedy electronic communication, but this time we’re going old school with snail mail. Just send a self-addressed stamped envelope (along with a note if you’re so inclined) to:
Send me some Gmail stickers already
P.O. Box 391420
Mountain View, CA 94039-1420
Make sure to include enough postage to return a sticker pack via U.S. mail. It’s less than one ounce, so a standard $0.42 stamp will do if you’re in the United States; enclose an international reply coupon (IRC) if you’re outside of the U.S. And be sure to send your envelope in soon — one per person please.
*Our lawyers asked us to make sure it was clear that your contact information won’t be maintained in any way and these stickers are “void where prohibited and only while supplies last.”
So get your free stickers today before they are all gone.