If you have a Cracker Barrel in the neighborhood (you should, as StL is a crossroads of interstates, and Interstates tend to breed Cracker Barrels), go into their kitsch shop and pick up a toy John Deere tractor. These toys tend to be abundant in the CBs up here (NE IL, SE WS).
(And while you're there, get Momma's Pancake Breakfast, and order the pancakes with pecans. You won't leave hungry!)