Check out Zazzle for a way to make your very own stamp with YOUR photo on it. That's what my wife and I used when we sent out wedding invitations. So cool.
We took photos from our engagement shoot and had Zazzle make personalized stamps. Then we included RSVP cards with postage on them and of course the postage was our awesome custom stamp. Genius idea. And one of the few ideas of mine that actually made it in the wedding, lol.
“One of my few ideas that made it into the wedding, lol.”