There you go (not mine): http://www.everystreetchallenge.com/ or https://citystrides.com/

Do you also get redirected to some random post with 2 up votes when you click on any i.reddit url/picture. I use the same setup and was wondering if I messed up some settings or if it reddit messing up the old interface.

It depends on the type of supporting structure for the panels. In Germany a company built it tall enough to use their normal farm equipment: Image

I’ve seen pictures of massive tractors pulling several ploughs side by side in the US, that would most likely not work with this, but there are plenty of solutions for anything on a slightly smaller scale.

Rockets are just big soda cans with a nozzle to let all the fizz out.