Place the ruler onto the cork
Measure 3 inches around to make a square
Cut square piece of cork out
Cover cork with scrabble letters however you want
Glue letters together side-by-side onto the cork
Let it dry for 5-10 minutes
Completely cover dried piece with lacquer to create a protection from moisture
I hope this fun and super easy "how-to" helps. You now have coasters that aren't boring or plain, but are ones you actually like!