I have been trying to learn how to repeat throw on the wheel. That means getting all the items the same size and shape - important, say for a set of mugs, although not so much for individual tea lights.
As you can see, I have a long way to go - quite a variety in size, and the rims are thicker on some than on others.
Nevertheless, I have made them into the "mousie" tea light holders, hoping that I will be able to sell them. (I haven't put Gerry's potter's stamp on them though!!!!)