Not much of a write up on this one. Just some pictures of the finished thimble. I sketched some lines on the thimble with the hopes of using that to guide the location of the dimples, but then after reading a little more about thimbles in a book I have, I found that the random location of the dimples was more likely the process used.
I cheated here... I know, yuck!
I used a Dremel at this point. Up until this point I had only used hand tools, but I gave up and decided to wrap this project up quickly. A decision I'm sure I'll regret. I have more bones in the basement so perhaps I'll make another some day all by hand.