A couple of friends of mine just got back from Zambia this month. They spent 4 months over there starting a coffee shop for the orphans.
They rented a little shop in a smallish town. They purchased an oven/stove, where they can cook things like pizza and hot chips. They have a kettle so they can make coffees for people and a blender for milk shakes etc.
The owner of the property gave my friends a discount on the rent when they told him what they were doing.
It cost them around $2000 to get the water and electricity put on in the shop.
My friends trained the orphans of this town to make the pizza and coffe etc, from scratch. All proceeds from the shop go to helping the orphans of this town, and some nearby towns.
They are now back in Australia, but they are trying to get more funding to go over at the end of the year to do start another shop like this in another town.
If you cannot do something on this scale (which is totally understandable) then maybe you could try holding a charity event to fund an organisation like this.
My friends who did this are involved in a non-profit organisation who hold "African Parties".... they get a DJ to play African music, they make heaps of African food.... The African men and women get together and dance... people pay money to come watch and eat.
They are great events. People love to learn more about the culture.
Hope this could help you.