I got two days to come up with something to draw kids in to the STEM world.
I was thinking a simple board game, monopoly like that you race across the board to the finish line. Arduino will provide Random numbers and display them on an LCD or OLED screen. Occasionally a random message will appear to make things interesting like to choose a magical amulet, move back a space, or instant loss.
RFID tokens will be the amulet.
Should be fun and interesting for the kids.