I just bought a bag of these for spy themed geocaching travel bugs. The way they work is a micro image is reduced and embedded in the viewer on a one by one basis. http://www.escopes.com/ sends the lens to me once I provide them an image. I was curious if it would be possible to create my own images with a new mission once the travel bug reaches its destination.

As an aside, here's the bugs that I'm working on so far. The 001 is the prototype and is outside of Bern right now. I'm looking for about 18 more "spies". Any ideas?

Eye Spy 001
EyeSpy Margaretha Zelle
EyeSpy Markov's Waterloo