You wanna go out tonight but you have lost the back of your earring? You probably do not have the time to go to a jewelry store to get spare ones.
Well you'll just find a drawing pencil that still has an eraser at the end!
Then use a sharp knife to cut a slice of the eraser.
This tiny slice will serve as a replacement for your earring back until you get new ones!
Cut a thin slice of eraser on a pencil. But not too thin anyway.
First make a hole in the center of the eraser
That's it. Perfect!