Absolutely awesome project from tmutmu111 on Instructables:

Based on our experiences last year in building and operating the Chocolate Slot Machines, we knew that we had to accommodate hundreds of players over approximately three hours time. Therefore, our next design required a quick throughput time and had to be durable in order to withstand this intensive usage. We chose to build four stations to promote healthy competition and offer sufficient capacity as well as minimize wait time. Rather than have players roll balls to advance the horses, we agreed on a simpler button set of controls. We also wanted to challenge ourselves by dispensing a new candy. After evaluating numerous types of candy that were packaged in small boxes, we settled on Mike & Ike’s and Hot Tamales, which we bought in bulk.

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