Thanks everyone for the positive feedback. So to answer some of the questions I use a pair of metal masters offset snips that can cut straight to left. I try and get as close to the top of the cap as I can. Then I take a brass hammer and flatten the cap out. After it is flat I cut the cap into a circle. I then sand the cap at the disc sander. I use a bolt about the size of the pen tube and shape the cap with a nylon tipped hammer around the bolt. I hope this helps.