This RGB LED Infinity Mirror uses an Arduino controlled RGB strip that allows some control over what color and pattern are displayed on your mirror. When off this type of mirror looks like a normal mirror but when the LEDs are on it gets reflected onto the normal mirror at the back from the one way mirror on the front. This makes for a great looking effect!
“It’s an RGB LED infinity mirror that lets you toggle between an adjustable-speed color-fade mode and a direct-control mode where you individually set the red, green, and blue LED brightness levels. The primary inspiration for this particular project comes from this infinity mirror Instructable and Adafruit’s RGB LED Strip tutorial, but there are many more quality resources out there on both projects.”