How would you like to have a one-of-a-kind piece of Pumper art to decorate a wall in your office? Well, here’s your chance.In 2006, artist Bill MacGregor, of Johnston, R.I., customized two of his most popular prints, “Outhouse Pumper’’ and “Porta Potties’’ to run with a story about his work depicting vintage trucks and equipment in Pumper magazine. Just like a new Picasso masterpiece is discovered every so often, I found these colorful pen and watercolor works deep in my vault of goodies recently and decided to give them away.MacGregor – who once worked for a company that designs and
