Exciting project by Alex Wulff on Hackster.io:

Light-Up Poker Chip

This whole circuit is the same size as a regular poker chip, but with an added surprise: lights!

Spice up your poker games with these cool blinking chips. They can be programmed on the fly to have a certain number of the LEDs illuminated to indicate value, or you can have the lights blink in a cool pattern. They make great playing chips for championships or great prizes to hand out to the winners.

Video of the board in action:

AlexWulff has shared the board on OSH Park:

Light Up Poker Chip Rev. 1