Since women are likely going to be more interested, you could prepare (blind) paperstrips (or better, funnels or the like) for women to smell to determine what's "sexiest" (or similar) for them. This could be arranged in meaningful ways (for instance, first they smell a fresh and a warm, then when they choose that, they will smell further mouilettes based on their initial choice and so on).
Themes could be: "what do you find sexiest on your man?", "what would you find most professional?", "what would you find best for church/wedding etc?"