I used to participate, year long, with a local Farmer's Market. We'd sell items every month, but as the years have gone by, kids have moved out, dairy goats were re-homed, and well, I got very very busy with my garden. And we stopped making goat's milk soap. I stopped selling jellies and jams. However, I still crocheted and knitted.
At the beginning of our adventures, I wanted to have an item that filled a basket, and sold for $1.00 each. I decided to make cup coasters with scraps of cotton yarn, and make them like flowers.
These sold every time we set up at the market. Women loved them especially. I was complimented on the colors and how fun they were to have.