Thank you so much for posting your versions of the July newsletter. I have been wanting to do something like this but was so overwhelmed, I couldn't get started! Thanks again!
You could try giving an incentive to the host(small something like sample of hand soap) for having a certain number of people at her show on top of doing the game you already do. You don't tell the host what the product is she will get, you just tell her she will get a free prize for doing it...