Whiteboard
Whiteboards became commercially available in the early 1960s, but did not become widely used until 30 years later. Early whiteboards needed to be wiped with a damp cloth and markers had a tendency to leave marks behind, even after erasing the board. Dry-erase markers for whiteboards were invented in 1975.
Fingerboard (skateboard)
Fingerboards were first created as homemade toys in the late 1960s and later became a novelty attached to keychains in skate shops (but were also mentioned as a model for a skateboard). In the 1985 Powell-Peralta skateboarding video "Future Primitive," Lance Mountain rode a homemade fingerboard in a double-bin sink. It is widely accepted that this is where the idea for the Animal Chin ramp came from. Some consider this the earliest fingerboard footage available for public viewing. That homemade fingerboard was built from wood, tubes, and toy train axles.