YouTuber DEXTER SEE posted a very simple, but cool trick that involves only a white plate, a circle of Skittles candy and hot water. The result of this combination of odd ingredients is a colorful rainbow that expands into the middle of the plate.
Simple DIY rainbow magic with Skittles candies. Form a circle with Skittles on a plate (colours should be in repeated order, preferably according to colours of the rainbow e.g. purple, green, yellow, orange, red), then pour hot water over them. Wait for the magic to unfold right in front of your eyes!
via Boing Boing