 Like a lot of baby boomers, Joe Maddalena and Mike Rubino were first exposed to the concept of collecting and trading by TV commercials. Yes, a genuine model of these giants of the open highway is yours, free in each of these large packages of Post Grape Nuts Flakes, the training table cereal. Start collecting your Fruhoff tractor trailer models right away. So it's no wonder that the things they loved as kids are often the things they collect as adults.