FM radio kit
See the wholesale price
This kit will allow you to play with the laws of reflection in optics. The mirror is actually made up of 2 semi-reflecting mirrors facing each other with a series of LEDs on the inside edge of the frame. When you build the circuit and power the LEDs by pressing the button, the light emitted is reflected between the 2 mirrors and gives the illusion of an infinite tunnel to the outside observer. A fun way to approach reflection in optics! To be completed with 3 AA batteries.