There was a board game that Allen Sherman endorsed called "Camp Grenada". Milton-Bradley I think. It came out around the time "My Son the Folk Singer" came out. Anyway, you drew cards to go to different destinations on the board picking up rubber lizards, snakes, bugs, etc. along the way. You had to drive the camp bus to each destination. The bus was a little bigger than a Hotwheels bus would be and made of plastic. The front axle would move from side to side as you pushed it along. Attached to the axle was an eccentric cam that, if you got the front wheels too uncentered, would hit the hinged radiator knocking it down ending your turn. It was great fun. The rubber bugs and such weren't the cheap little tokens one gets in todays's games. They were substantial. Up to 5" and really squishy.