Blue, red and green cellophane (available at most craft stores) Three rubber bands. Pen. Cardboard box. ... Extra: Instead of the white poster board, use different background colors.

Actors are filmed against a background of bright green LEDs while being lit from the front with red and blue ones, which together create a magenta glow (see video, above).

You may notice it switching to a blue, green, red or purple background. Each one has a different meaning that you need to pay attention to. "On iPhone X and later, the color shows as a bubble ...