If you’re having your respondents fill out the questionnaire, you may want to incentivize filling it out and returning it. Consider giving acoupon rewardor holding araffle for a gift certificate. Each person who returns their form by a certain date will get a chance at these rewards. Also...
With using a group to play the lottery you will have the ability to broaden your funds to purchase more lotto tickets than you can do by yourself. Or you can place the money toward buying tickets for one more drawing. The majority of people will promptly confess they have no great fortune...