1. Find a car "swamp cooler". These things were more common back in the mid-late 50s. The box is filled with ice and rolled up in a rear window so the intake was out in the air stream.
2. Make a Redneck Refrigeration portable unit. Items needed: plastic ice cooler large enough to hold 1 5 - 8 lb bar of ice. You'll need a blower that can be attached to the underside of the cooler lid. Tubing to get air into the cooler and out of the cooler. You'll also need a cord with a cigarette lighter plug to provide power to the fan. Extend one tube through the lid down into the ice. This is the air inlet so there is no need to run it all the way to the bottom. The detachable lid makes it easy to re-fuel the system. Suggest draining water from chest after two bags of ice
Empty bag of ice into cooler, close cover, plug in fan. Enjoy the cool. The advantage of this system, is that re-charging the refrigeration is easily found a most convenient stores. Treated air outlet can be made more elaborate to suit the individual's need. Courtesy of Costco, O'Reilley's and Lowe's, we paid out less than $20.00 for the hardware.
Got one of these in a Cessna 150. The pilot loves it. He chills as six pack in his cooler while flying. Arrives at destination with beverage of choice at correct temperature. :snakeman:
