Vampire Mirror
I'm not sure if this would work on not but I'd sure like to try it. If you're out there and reading this, and DO try it, please let me know how it goes.
Imagine that you are looking through a 2-way mirror. Like the standard viewing mirrors found in police interrogation rooms from the movies. You can see through it as if its a window, but anyone on the other side only sees mirror. On the other side of the room is a large mirror, the same size as the room facing you. What would you see? If there is a person or furniture in the room of course you would see those things, but what if there isn't. All you will see is a mirror reflecting another mirror. What would that look like? You would be looking into a mirror and seeing only a mirror.
I'd like to build a smaller version of that scenario that's only about the size of a medicine cabinet. It has a 2-way mirror as it's face, so you can look through from your side but anything on the other-side cannot pass through. A thin box separates this mirror from the back which is a regular reflective mirror. The box is open at the top to let light in.
