Street fair promotional event

Every few weeks my small town has a summer open market- vendors offering wears, services and little things for family fun.

My gym recently got invited to do a small booth. Yet short of bringing in a squat rack and some barbells I’m kinda floundering as to what to bring. I want to offer strength training but that may be a liability without paper forms, and I’ve never expanded into yoga/zumba or other crowd friendly workouts.

Have you ever had small promotional events? What do you do?