Check out your local county fair. The Milwaukee Bonsai Society gets a thousand or so every year from the Milwaukee County State Fair. If your county has a state fair, sometimes they pay organizations to participate. In Milwaukee County, the State Fair runs 3 weeks. We put up 3 bonsai displays, set up on Thursday evening, tear down on Sunday night or Monday morning. We do 3 weekend shows during the 3 weeks the State Fair runs at the county fairgrounds. The State Fair pays us to have the 25 to 35 tree display and have people on hand to answer questions. Each day someone has to give an hour long "Intro to Bonsai" demonstration, and that is usually to an audience of 20 to 50 people. This all happens in the "Arts and Crafts Pavilion". This is nice income, to have a show and actually be paid to stage it. Check with your local county fair exposition organization. We have been doing it in Milwaukee for over 40 years. This State Fair show is separate from our Annual Exhibit. 2020 should have been the 50th Anniversary Exhibit for Milwaukee Bonsai Soc. but Covid19 has screwed this up.
We do raffles and auctions at our monthly meetings. Also auction and raffles at our annual exhibit. We are not allow to do raffles or auctions at the State Fair. Vendors pay a modest table fee, not a percentage of sales, at Annual Exhibit the table fees are higher, at monthly meetings table fees are lower, and only a limited number of tables are allowed per meeting.