Rotary Egg Beaters.
Willis Johnson patented an improved egg beater in 1884. The BBC says he invented the egg beater, but about.com says he improved upon it. He was black. I would like to know if his children and grandchildren, and great grandchildren, and great-great children enjoyed the benefits of his patent. Or maybe he didn’t have kids. There isn’t an abundance of information on his personal life. I gave up after the first few pages of results though.
Status: Keep. This particular object has been used in a photographic series I did in 2010, “Butterine” and may yet expand upon. Find out more about Willis Johnson.
Kill-ratio: My notes are at the stuffice. So guessing 18:1