Furnished content.
(from Lumberjocks.com)
Set of epoxy and wood coasters I made. The wood came from a project pack that I got on clearance from woodcraft. I cast the epoxy in a silicone mold with the wood clamped in it, then planed wood until it was even with the epoxy. I trimmed the edges up on the table saw before I got out the crosscut sled to cut the coasters. Rounded over the edges on the router table and then sanded up to 4000 grit. A coat of wood honey and they are good to go. If you hold the coasters up to a light, the epoxy is somewhat translucent. Read more here