It was a tuning fork. ----- Original Message ---- From: Matthew Smart <matthewsmart@xxxxxxxxx> To: Harp <harp-l@xxxxxxxxxx> Sent: Sat, May 8, 2010 10:50:30 PM Subject: [Harp-L] Embossing Tool Hey Harpers, I once saw a picture of a tool that was esentially a ball bearing on a metal stick. Does anyone know what this is called and/or where I can get one? Thanks, M