Here’s an oddball idea. Have you ever looked in a mirror and realized what you’re seeing is not what other people see when they look at you.
Specifically, the best example I can think of is with how you part your hair. (This goes for the ladies as much as the gents).
My part is on the left side of my head. But when I look in a mirror, it looks like my part is on the right side of my head. They have a term for this in organic chemistry: stoichiometry. With many carbon-based organic chemicals there are similar compounds that are exact mirror images of these molecules.
My idea for this invention is to add a second layer of mirrors so that one can look in the mirror and know that what they see is also what other people see when they look at them.