Tap-taps are public transportation in Haiti. Of all shapes and sizes, they have regular routes but are individually owned rather than existing as part of a city-wide system. Most are pickups or small flatbed trucks with a roof and fairly open sides, but I have seen a few former US schoolbuses partially repainted and put to use.
Tap-taps are brightly painted in many colors, almost always with slogans on the front and sides in capital letters. Most of these are religious, and quite a number of them are in English. I've seen "THANK YOU JESUS" and "LOVE" several times. At some point later I'll write an entry with a list of them.