Consider donating Rp. 5k for mangrove tree planting. Each tree costs Rp. 25k. So far, we have planted 3,300 trees in your name to clean the air pollution around Jakarta and Kalimantan, and still counting!
What's amazing is, if your total purchase is a bit short, it might help you reach the minimum amount of total purchase and qualify you for free shipping in Jakarta area. Yay! Win win for all, and the earth rejoice!