Flashcubes - You slid a lever to spin the flash after EACH picture. 4 flashes on each bulb then that was it, you had to pop in another flash cube. No cube? No flash! I can still remember the smell they made after you flashed one.
Drive-In Movie Sound System.Speakers at the drive in.one for your car.one for the car on the other side of you.what fun it was! Not so much fun to drive away at the end of the movie with the speaker still clipped to your window!