Ask HN: CharityCoin - Complementary currency for NGOs

Imagine a world with a currency that: * can be generated by your favorite NGO in exchange for dollars or euro (one to one) * can be used with many merchants (those wiling to display social responsibility or for other reasons) * allow micro-payments * exchange fees will be used for supporting NGOs's causes

I can imagine a SaaS startup providing this service for NGOs. Has anybody tried this before?

I would love to have some passionate, native English speakers, serious PR skills and relevant expertise as co-founders (hustlers) on such startup.

Thank you!