Many might not know this but I'm a Stamp collector. As a collector, I always wanted to personalize my own stamp, legally! Means I can put my face onto a stamp and use it legally.
I had my own personalized stamps years back and this is how it looks like... This stamp is worth 50c postage fee and can be used in Australia only.
In fact, I got the whole sheet of it. I'm so into myself... sigh...
There are 2 post companies who can personalize pictures in this world as far as I can remember. 1 is Japan Post and another one is Australian Post. For a small fee, they can personalized your stamp and send it to you. I only have the Aussie link, HERE... Enjoy!