Lie Detector Mirror.
There is a very special mirror. If you stand in front of this mirror and tell the truth, you are granted a wish. However, if you tell a lie, POOF! you are instantly swallowed up by the mirror, never to be seen again.
A redhead of questionable looks stands before the mirror and says, “I think I’m the most beautiful woman in the world.” POOF! The mirror swallows her up and is never seen again.
Next, a rather large brunette stands before the mirror and says, “I think I think I’m the sexiest woman alive!” POOF! The mirror swallows her.
Then an absolutely gorgeous blonde comes and stands before the mirror and says, “I think…” POOF! She is swallowed up and is never seen again.