A healthier and more legal approach is to auction the resulting IP to an individual or a small group out of the participating people and divide the proceeds among the rest of the participants.
You can't afford to maintain 100 employees in a startup, and it is foolish to have 100 equal stock holders in a startup, every decision will take months. But if you auction the IP, the person or group with the most faith and ability to further the startup will buy it from the rest of the participants and the rest will have had fun and gotten some financial restitution for their work.
You can't afford to maintain 100 employees in a startup, and it is foolish to have 100 equal stock holders in a startup, every decision will take months. But if you auction the IP, the person or group with the most faith and ability to further the startup will buy it from the rest of the participants and the rest will have had fun and gotten some financial restitution for their work.