Oscar Mayer Wienermobile

The Wienermobile is proof that corporate America occasionally has a sense of humor. First built in 1936 by Carl Mayer (Oscar's nephew), it's survived every trend in marketing because it works on a primal level: a giant hot dog on wheels makes people smile. The 1969 generation marked the transition to a more sophisticated build on a motorhome chassis. Each generation since has gotten more elaborate, but the core absurdity remains intact. It's the most recognizable promotional vehicle in history, and probably the only one with its own fan club.

Most Wienermobiles are maintained by Oscar Mayer/Kraft and rotated out of service every few years. The handful that have escaped into private hands are treated as artifacts. Original Wienermobiles from the '50s and '60s, if they survive, are holy grails of promotional vehicle collecting.

You almost certainly can't own one. Oscar Mayer keeps them in-house. The few that have sold privately went for significant sums to collectors who had the right connections. If you do acquire one, congratulations — you own a piece of American pop culture that everyone recognizes. Storage requires a building, not a garage.