Hooray for the 'habit-forming' (Maxim) calendar that has charmed its way into being one of our bestselling wall calendars. Nuns Having Fun is a delightful celebration of simple pleasures and sheer, spontaneous amusements. Nuns on swings, nuns on skis, nuns playing street hockey. Nuns at amusement parks, nuns frolicking in the surf, nuns having a snowball fight. The sweetly nostalgic photographs are black-and-white and date back to the 1950s and '60s.