What are some unorthodox methods for borrowing money to start a business?

JB asked: Don’t waste your time or mine by answering with “borrow from family” or “go to your bank”, etc.
I have a few ideas for businesses that I would like to start, but it seems like every avenue I explore to borrow money turns out to be a dead end. Forget about borrowing from banks [...]

Are banks and interest really needed?

Anders asked:
If I buy a house, then I can take a loan, from a bank, with the obligation to pay back the loan at a certain minimum amount per month or year, with zero interest. Why is the interest needed other than to keep the bank going? I could take the loan directly from the [...]