Here is a tip for polishing a stud earring, try holding it with a ring clamp! This can help prevent the stud from flying from your fingers whether you are using a polishing machine like me, or a flex shaft! Also sharing some progress of my engraving, I have taken two classes at grstools and with practice I am making a little progress! You can view their class schedule on their website 😏 If you have a different method please kindly share! This is not the only way, it’s simply a way. ☺️