[salamandars]

It's definitely rigged, and even allows the owner to choose how difficult it is just like the one in the article.

Where I grew up there was two places next door to each other which both happened to have stackers. One had junky prizes like cheap earbuds, and the other had great prizes like a gameboy or mp3 player. Sure enough the later was more popular, but no one ever won. Once you got good at the game the one with the junk would 'allow' you to win pretty reliably every dozen or so attempts.