Last May, the US Postal Service began allowing custom stamps with noncommercial photos and images. This week they have decided to allow companies to put logos and other commercial images on them as well.
"Every single day, we get orders that we have to reject because of this restriction," said Robert Beaver, chief executive of Zazzle, which prints custom stamps. "Lots of people are really interested in getting their message out on mail."
Only the Postal Service can issue stamps, but they allow other companies to sell what are basically postage labels, with the uploaded image in the center. So, technically they aren't stamps but they are valid postage.