i've never heard of a balloon fetish having anything to do with drugs. it's either a specialized latex fetish because of the material and the squeeziness or some people are into the adrenaline of the balloons popping.

glasses - i pushed 'em in straight for years. did just great for me. some people feel that glasses make models look intellectual - bookworms and all that. some just think they look sexy.

wrestling - you could test this but i think most people want to see two guys wrestling, not a lone guy rolling around or simply wearing wrestling gear. why not ask don mike if guys standing and posing in wrestling gear sells - they used to have some sets where he used to work.