Comment Prizes, not funding. (Score 1) 247
1. Give them the money concept: The first people to completely meet the requirements get all the money plus interest. I would expect the goal to be some sort of working prototype for whatever it is they want to fund.
2. Invest the money in their company concept: The first people to meet the requirements get all the money plus interest in exchange for a minority stake of non voting stock. This is how to encourage people to hand their "crowdsourced" money over.
i.e. They have to already have something more than an idea, to get the cash. Ideas are worthless, everyone and their dog has The Great Idea. The global supply of ideas is huge. The supply of people taking it beyond that and doing something with it is scarce and that is what is worth funding.