 In the Philippine city of Kidapawan, North Cotabato, the "Kanyóng Kawayan Festival" is held from 14-20 December to promote safer noisemaking alternatives during the Christmas season.Empty powdered milk cans are common projectiles used in the city-wide contest held during the event.A variant form, known as "bong-bong", is used by the people of Mangaldan, Pangasinan, but with water and motor oil as the fuel.