The Uganda Skateboard Union built a skate park in 2006 (build photos here and course photos here) and they want donations so that they can build another one.
"We are looking for donations to help us buy land and materials to make this happen. If you like what we have done with our first park, please support us in building a new one. As with our first park we are relying solely on private donations, so any amount will help!"
You can visit their website here or their blog here. There's also a work-in-progress movie here.
(via Boing Boing where the commenters are going crazy!)