Developed the software for a travelling competition kiosk for British Airways. Users would que up for try their luck at winning fantastic travel prizes (free tickets).
They would push a big red button and the software would spin much like a slot machine and decide if they were lucky enough to win.
Rather than rely on random numbers a special win algorythm based on time slot and number of prizes was creatd to insure a set number of prizes were given out during the day.
The competition was used in a few different locations.