I'm looking for unrestricted cash to try out a few of those idea. I have an idea on how to build it but the idea uses such "eccentric" business methods that it would give anyone who believes their MBA class or have typical financial knowledge a heart attack.
What options do I have besides moonlighting? Where can you find people who aren't typical investors and who love unlimited "risk"?
If you have produced a significant company that has gone public or has been acquired you may have some luck
There's no such thing. All money has strings attached. My recommendation is that you learn how to acquire restricted cash -- the only kind -- by demonstrating that your ideas deserve support, compared to other ideas the money might support instead.
When you ask for money, you're immediately competing with every other human being on the planet. Make no mistake about it -- your ideas will only be supported if you can show that they have merit. And the burden of evidence is yours.
Welcome to reality.