what were those plunger type target things known as, lick on Buck Rogers and a couple of baseball pinballs. They reminded me of the fair ground amusement park skill tester where you hit the pin with a hammer to see how high the disk would go up and try to hit the bell.

They frustrated me a lot if the flippers were too weak on a game.

I think they are called Vari-targets.  Ive never played a game with one on, so I will be keen to get my Buck Rogers working so I can test it out.