I want to start uni-cycling, but I’m saving up for an adequate uni for the road ahead. Therefore I do not want to pay tons of money for something that will be abused for weeks. I just need something to get started… 
There are a couple on the Chicago Craigslist. They aren’t free, but they’re pretty cheap, and you won’t have to pay shipping.
i saw the ads, but they live in the suburbs and i don’t have a car