“Mood Rings: I had one. But never a pet rock, too silly.”

“This interesting combo of materials and technology also came to mind — it is a technique where images invisible to the eye will appear when photographed with a digital camera.”

“Hypercolor rooms? Kameraflage? Hmmm...

On the other hand, this is pretty much as basic as it gets, and I sometimes feel like I could use one of these helmets. If only you could add some kameraflage to that.

I wonder what it says... hmmm... ”