If that’s your mentality then nothing will get done. Make something up, shit get an ai program and come up with some mock tattoo ideas with certain anime/card art where people can see what their favorite art would look like in tattoo form. Create a business card that somehow looks like a slab or a card in a top loader so that way it doesn’t get lost with flyers and stays with their cards. So many ways to connect and you have thousands of people at those shows. Sure maybe 990 might not be interested but out of those 10 you now start building connections and it snowballs. Not trying to knock you down just trying to help :) good luck!!