FanClub

Take a sports celebrity. They create a number of places in their "team", and that is the total supply. Teams can be reduced in size by the celeb paying to reduce the number, which pays out the market value of the number of spaces left, and the members can bid to stay in...like musical chairs.

To keep your seat in the team, you have to pay each month at the market rate above what others are bidding to get in. The celeb can grant immunity also. And the celeb is incented to keep the value high or the price existing or new members are willing to pay to stay in the team will go down.