When I decided to make 50 clay donuts - I don't think my brain really grasped the idea of 50 clay donuts. After the first 8-10 donuts, the novelty wears off. Trust me on this one :)
The weights seem to lose a uniform amount of weight from air drying. I start will a 8oz donut and end with a 5oz donut. This seems like a reasonable weight to work with. After working with the clay a bit, 1lb weights would have been too heavy. These at just shy of a 1/4 lb seem much more the thing, especially for the thread counts that I would like to eventually aim to get.