Going back to the thirties some bright entrepreneur in Tijuana Mexico decided to paint their donkey with black and white stripes to look like a Zebra, the idea was to make the animal look better on black and white photographs. Most of the donkey’s were white or fairly light and photographed badly in the bright Mexican sun. Like any good idea, others followed and decades later the tradition continues. The zonkeys or painted donkey are there for the tourist, it’s amazing how many people will spend the $10 or so to have themselves photographed wearing silly Mexican hats and ponchos with these dopey striped animals.