Is there anyone out there who isn’t familiar with the high five celebratory gesture made by two people, each raising one hand to slap the raised hand of the other? Its dates back to 1944 when in the movie, Cover Girl (1944), Phil Silvers' character, Genius, tears up a telegram and attempts to "high five" co-star, Gene Kelly.
The “high five” is conventionally meant to communicate mutual satisfaction to spectators or to extend congratulations from one person to another. The arms are usually extended into the air to form the "high" part, and the five fingers of each hand meet, making the "five", thus the name.
US # 5356330 is a patent for an American apparatus simulating a "high five." It consists of a lower arm portion with an attached simulated hand, an upper arm portion, an elbow joint, which pivotally secures them both and a spring element, which directs them both nowhere near Nirvana but closely towards a pre-determined alignment.
It is not known why the inventor (whose name is being withheld to protect his guilt) believed this would be an item every self-respecting household should have at least one of, nor why any market (self-respecting or otherwise) would stock such an item. Still, anything goes today. Consider Samantha’s article, "Three Famous Things Invented by Accident - Slinky, Silly Putty and the Popsicle" and Amused and Bemused’s piece about pet rocks.
God knows what tomorrow will bring!