Initially this cantankerous masheen was built by Trade Boss Debsloks scrapineers as part of an incentive program to wastelanders to trade with the traders more often. The basic premise was that if you traded a certain amount of scrap, you'd get a bonus item called a WL: Candy Scrit. You'd then put this item in the coin slot of the masheen, and get a random reward. However such a program proved to be too taxing on the traders resources; doubly so after Saul screwed up and lost a few crates of tokens in transport.
How to Use
Just rez a Candy Scrit on the coin slot of the Candy Masheen located here. You'll receive a random reward from the list below, in order of scarcity, where the top items are the most common, and the bottom items are more rare: