Mashed avocados mixed with milk (or evaporated milk) and sugar (and ice) is another popular Filipino drink or dessert especially in the past. I'm not sure if this dish is exclusive to Filipinos. Avocados are not native to the Philippines or Asia as it originates in the Americas. But there were no cows or goats in the Americas before Columbus except for Bison (which is usually found north of Mexico, although some existed in Mexico). Llamas are found in the Andes of South America. The Desert Bighorn Sheep exist in Mexico, but were they used to extract milk?
Another similar dish, is strips of Canteloupes and milk (or evaporated milk) and sugar (and ice). Again I don't know if this dish is exclusive to Filipinos. Mexicans and perhaps other Latinos have a drink that mixes strips of canteloupes with water as part of their "agua fresca" lineup. With a quick check on the internet there appears to be some mixed with milk and even condensed milk, but most appear to be just mixed with water and sweetened with sugar.
Of course after Columbus, cows and goats were introduced, and milk could have been mixed with avocados and canteloupes in Mexico and other parts of Latin America.