Arlanda Airport is constantly searching for ways to enrich the traveling experience to make people chose to spend more time (and money) before/after their flight. And to highlight Swedavia's partnership with the Red Cross, we converted some of the plexiglass-foreign-change-donation-boxes into classic arcade machines. For each coin you put in the slot, you got a gameplay. Any currency coin was accepted. Still used at the airports after 5 years!
I did idea, art direction and even CAD design, and all of the drawings and electronics. Went no 1 on Reddit for a while! :)