I was watching some of these on youtube a year or so ago. So I decided to build one in the basement. Cost about $300. That slide mechanism can be found online, the sides are cheap plastic wallboard like they use at fast food restaurants. The motors are easy peasy to get also. I just let my "winnings" fall into a basket. I got bored with it and sent it to my daughter after a couple weeks. I put casino "chips" in it, quarters, and some odds and ends.