[squiffy]

Well, this is already done, on an informal basis, by poker players who are selling a piece of their action in a tournament. Though that is also a form of insurance or risk-spreading.

As an individual, you don't have as much to offer as a true corporation. But perhaps, if you had high earning potential, there could be a way to raise money based on your talent and likely earning ability.

In America, if you have something valuable, there is probably a way to package it and sell it.