mmmh... This is an interesting problem that merits to think about it. How to grant that most donated money ends really helping the country instead making rich the local organized delinquents, spoon-feeding the war and supporting the local corrupt nets. We need to attract more creative people as possible to think about how to improve this.

I'll propose something. Why if we would use the donated money to condone the same amount of external debt in origin? or maybe to lobby with the goal of stopping unreasonable external debt forever?.

Advantages: More simple, no blackmail when crossing customs, no generous international help for lords of war of dictatorships, not money leaked in the travel, more money available to help with the same amount of cash, because you don't need to burn part of your resources to move a team of people to a small country in the middle of nowhere and protect them of being kidnapped or falling ill. No more buying goods in America and spend your money moving it to Tailand when you could buy the same products in Myanmar, less troubles when converting between a lot of currencies...