Want a more professional look? Cut a sheet of cork to the same size and shape as the coaster, and glue it on the bottom. Glue Square Coasters Together To Make A Decorative Planter Hot glue square ...
Measure a 4-inch square onto a piece ... that gets on the coaster from cold beverages doesn’t leave water rings on the photo and ruins it. But, since cork is porous, any condensation will ...