Experience selling beads?

Hey! I searched through the sub but didn't get all the answers I wanted. I wanna start selling fusebeads. I'm not dellusional about making big money, it's mostly just a hobby and the extra little bit of cash would help. I want to start selling at fairs and conventions but I'm nervous about not selling anything.

They are opening application to sell at an anime convention soon and I would like to try and sell there for the first time.

With the 5mm beads, I mostly do Dioramas.

I do mini beads too and I would put them on magnets keychains, earrings.

For those who have sold beads at these sorts of fair, how much in sales did you make (i'm not talking profit, but just general sales without cost of booth, material, etc.)

Do you have any tips for selling at conventions?

Thank you :)