It's the latest craze. Really. You set up the croquet wickets in random places all around the house. If you're in a duplex, well then, the neighbors have to be in on it, too. Use bits of rain gutters for ramps and large dogs as obstacles. Mow designs in your lawn and leave some areas of really tall grass. Remember that the balls float, so feel free to play close to the pond. Oh, and most importantly, start at 9:00 PM and play in the dark.
And next time, take pictures.