Since I'm restricted to small projects while my back heals, I figured I'd try to use up a few pieces of scrap wood and made some purpleheart and maple coasters. They were going to be 4 squares like a chess board but the four corners where the squares met didn't quite meet in the center so I decided to make them round instead. I used a 3 1/2 hole saw and a 3/4" woodboring drill bit to cut out the center and hide the poor craftmanship ;-). My son tried his hand at making a 3/4" purpleheart dowel on the lathe but in the end we don't like the purpleheart end grain and the dowel wasn't consistently 3/4" nor were the holes in the coasters! I thought about getting a 3/4" plug bit but that will taper and the bottom side of the coaster would have a gap. I haven't done anything with epoxy but maybe an opportunity to try and fill in the center with some colored epoxy. Could I get the epoxy to match the purpleheart color? How noticeable would epoxy be if I filled the gaps that were created with a 3/4" plug? Any suggestions as to how best to plug that center hole would be appreciated! Thanks.