Most of the ceramics spinners that you can get online are expensive. Since its just plastic and a bearing I figured I could make my own and give it away to all my friends.
The purpose of a spinner is to place downwards pressure on the piece while trimming away the extra weight. Usually this is just done with your hand or fingers but a spinner lets you place much more pressure without damaging it.
I've put the model on Printables for your viewing pleasure.