A common sight in homes and businesses around Thailand and other Buddhist countries in SE Asia are spirit houses. My school has one, the local mall has one, the market as well, and my apartment building has one. They are everywhere. Offerings are laid at the altar of the spirit house. These range from fruit, to a full meal, to a bottle of cola with the top off and a straw in it, to a small snack. I’ve seen a lot of things offered. There is usually a stick of incense burning as well.