I chose to use pegboard for the clock face because it already has accurately ... Now it’s time to make sure everything works. We do need to add ping-pong balls as diffusers before the display ...

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 ...

You don't have to be a world-class table-tennis champion to show off your ping-pong skills: Simply show up at Ace Eat Serve at 6 p.m. on Tuesday to grab a free spot in its weekly Tuesday Tournaments.