Value Chains British nonprofit Colalife knows how to enjoy a Coke–its medicine gets to rural Zambians in Coke crates–but even medical supplies need local flavor to be successful.The nonprofit’s AirPod is a pouch of medical supplies that can fit between the bottles on a Coke crate. The target: diarrhea, one of the biggest killers of children in the world. For about 90 cents, parents can purchase the rehydration salts and zinc, which they mix with water for their sick children to drink. If only dirty water is available, the plastic pouch doubles as a solar water purifier.Colalife isn’t the first to see potential in Coca Cola’s 20 million retail points around the globe. Humanitarian superstars like Melinda Gates have wondered how NGOs can replicate the soda giant’s success in accessing the hardest-to-reach communities. Unlike Coca Cola, rural pharmacies in Africa are few and far between.