Whilst this is a great idea and an admirable challenge youve set for yourself, I think youre best off going along the more traditional ways of raising money.
If you area a registered charity, companies can get tax breaks/exemptions for donating to your cause. Accepting donations in FIAT also gives you a greater pool of donators/investors (although investing will depend on whether youre a for-profit organisation, NGO/Charity or social enterprise).