Two Peace Corps volunteers and some old tires sparked a word-of-mouth wave of DIY playgrounds in North Africa. — By Elizabeth Moreno Bouarfa, Morocco was not what Josh Jentzsch had in mind when he signed up for the Peace Corps. “It’s cold,” he told me over a crackling Skype connection. Dry, barren, empty, and rural. “It kind of looks like Mars.” Throughout orientation he heard tales from experienced volunteers…