Idea: Get a postage stamp tattoo from every city you travel to. layer accordingly. <-- Not sure I would do that, but for some of my favorite places, that would be incredible Maybe country rather than city. Using the stamp from your passport.
RSVP Golden Star And Polka Dots Postage-Customize. This great stamp design is available for customization or ready to buy as is. Of course, it can be sent through standard U. Just click the image to make your own!