A few years ago [Brian McCafferty] created a nice big RGB LED panel in a poster frame that aimed to be easy to move, program, and display ... A regulation ping-pong ball is 40 mm in diameter ...

Here’s a list for the display ... had crystal clear LED packages, you may want to experiment with diffuse packages. You can see that there is a bright point on the top of each ping-pong ball ...

The new Sony B-Series and C-Series Crystal LED Displays are currently exclusively for professional use in modular form, but that doesn't mean that these MicroLED screens are to be dismissed ...