If there was a simple answer to that question, the world would consist of far more millionaires than it does.
If you have a great idea that is very likely to offer a return on investment, then getting your idea before an angel investor or a startup accelerator might be a good idea.
Alternatively, you could try a crowd-funding website like: www.kickstarter.com/
I don't know how "creative" those ideas are... perhaps a more sensible solution would be to launch your business in a low-cost, low-risk way first, and then scale the project once you start making some revenue (you may be able to become self-sufficient pretty quickly that way, or at very least offer a stronger assurances to potential investors).
For example, if you wanted to open a Japanese restaurant in your hometown, perhaps you could try operating out of a market-stall or a van to that there is demand for your product before you invest substantially more money securing a premises etc...
While that might not sound as fun or glamorous, there's no reason why it has to be that way.
If you're a creative and driven individual, even a humble food van can be an inspiring project!