What if you could vote with money? So everyone who votes on the winning idea can then choose to contribute some amount and the sum of everyone's contributions b

What if you could vote with money? So everyone who votes on the winning idea can then choose to contribute some amount and the sum of everyone's contributions buys, say, a 25% share in the idea, acting as seed funding. If only there was a website where I could discuss with people if this is a good idea or not...