Ad Rag has an article on how Fox signed the US Postal Service to promote the studio's new "Robots: The Movie" movie on 3 billion of mail pieces by custom-built cancellation stamps.
Then I remembered last year's attempt at personalized stamps by
PhotoStamps; the business
got canned by the USPS after some inventive people began "printing up stamps with pictures of people including Ted Kaczynski, Jimmy Hoffa and Slobodan Milosevic."
You still can get your logo or picture on a stamp in a handful of countries, most conveniently in
Canada at Picture Postage, and also in
Australia, where the whole concept was originally invented.
More:
Product placement on stamps for Adidas?