One of my favorite castings is the Volkswagen Beach Bomb released by Mattel in 1969. It's one of the most popular and desirable cars from the redline era. A customized VW Van it comes complete with hippy-style flower power decals packed under the cardboard that the car sits on.
There are orange and yellow surfboards on either side in bodyside extensions that were designed to allow the car to be used in some of the track sets of the day; prototypes without them were too narrow and didn't race well.
Finding Beach Bombs still in blister pack is particularly tough.
