This was a nice little project to use up some scraps in the shop. We needed a nicer coaster set than to stained, worn out set we've had for years. I designed this on the fly, imagining the chamfered bottom edges and the grooved elm holder/stand as I went. I do love the look of walnut, and elm has a lot of nice character to it. To cut the cork, i put an x-acto knife into a compass, which gave me nice, smooth circles. I went with a lacquer finish on these, and thicker than I like for furniture, as they will be getting wet and and be in contact with alcohol. I did do a final coat of paste wax applied with steel wool to do the final smoothing. Hopefully, they'll hold up over time. Structurally, the only concern is that the walnut might cup. A more stable approach would have been to laminate three pieces, (maybe with elm in the middle for style), while alternating the grain direction. Basically, a plywood. If these coasters do fail, I'll do that next time.