Step 9: Optional (Recommended): Distort the LEDs With Hot Glue
Without any further changes, your LED Art piece will cycle through seemingly endless patterns of light and color. You can further modify the appearance of your piece by dribbling a small amount of hot glue on the LED lenses. Instead of seeing individual red, green, and blue spots on the screen, you can create more interesting and complex patterns.
Plug in your glue gun and give it a few minutes to heat up. If you're a kid, you definitely need to get some adult supervision for this part!
Carefully drizzle small amounts of glue on the LEDs. Let the glue cool, and see how it looks when projected against the screen. Give it a few minutes to let the LEDs cycle through their various colors. Feel free to experiment, as it's easy to peel the cooled glue off the lens and try something different!