A friend from Australia sends me a copy of The Garden Whistle magazine via email each month. In this month's issue, a guy showed his "Soda Can Cable Car". So I looked it up and found it at Amazon. Normally, a soda can provides the basis for the gondola.
Here's the Amazon ad; https://www.amazon.com/gp/prod...00?ie=UTF8&psc=1
And here's my version;