I chose to use pegboard for the clock face because it already has accurately ... of the LEDs for the display (46 in my case) and ping-pong balls for the grid (105 in total).

Cut open a ping pong ball halfway. The cut should resemble a mouth. Guess what you have to do next? Draw a face. You can get super fancy with this, or you can just use a marker to draw eyes ...

[Jacob] has put a slightly new twist on the levitating ball trick with his ping-pong ball levitation machine. We’ve all seen magnetic levitation systems before. Here on Hackaday, [Caleb] built ...

“How many ping-pong balls could you fit in your mouth?” Steve asked Asia, who went first in the Fast Money round. Thinking on her feet, Asia answered, “Four,” without hesitation, albeit with a ...

An curved arrow pointing right. The ITTF (International Table Tennis Federation) has released a video showing the manufacturing of ping pong balls and it's incredibly satisfying to watch.

To show you how, it's enlisted the help of some inanimate objects. In the PSA above, a single ping-pong ball falls onto tightly packed mouse traps each with ping-pong balls sitting atop.