Has the USPS ever issued posters of their old stamps? I can think of several that I'd love in poster form. Right now, I have to settle for framing the blocks of stamps themselves.
While we're at it, here are some Royal Mail products that I own and love:
First Class Machin mug, available in several other color schemes:
First Class Chef oven mitt, available in one other color scheme:
Any other well-designed postal products that I ought to know about?