I like to create, design and build things and I need advice for a small part of a project I want to start working on that will eventually feed into something larger. I guess you could call it an art project for lack of a better term. what I want to do is grind the designs off a nickel ( actually multiple nickels) and grind in my own designs in their place. i figured a dremel would work best but im not sure, and i don't know where to begin when deciding which bits would be best. any help and advice would be much appreciated. oh and i wont be trying to spend the coins afterwards, they will be part of a larger project, so im not too worried when it comes to that. - thanks for the help.