Wood Coaster Diy . To guarantee consistency, clamp a scrap piece of wood to your saw base and use it as a. The wooden coaster represents a design object for the home or for a commercial activity used in the food and wine sector. DIY Scrap Wood Coasters DIY Huntress from diyhuntress.com Cut your wood pieces to fit in your silicone molds. Watercolors aren't just for art projects! Once all the coasters were cut i sanded all the edges and then cleaned off the sawdust using denatured alcohol.