Thank you for sharing this advices. Dont know if i need them though they interesting, but others may appreciate. "I want to add my mustard" in this thread too. You ever heard that verdicts? It is common in Germany and i think it is really funny.
My mustard sounds like: I know a similar way to start a small business. I did it by myself a few years ago. I rented/bought (it depends on the tent) some tents, like on the header picture of http://www.r-zs.com/en/space-solutions/wholesale-and-retail-trade/market-tents/
(dont know how to describe it in another way, i am sorry) i would call them "streetpurposal tents for selling products of any kind." and got a license from the local bureau to be allowed to sell my products on the street. I made large amounts of handcrofted key pendants with the help of some friends. It was funny and i earned some money. It was not really relevant for my career, but it was important for my experience pool.