I made these coasters for my dad for Father's Day. I saw the idea on Pinterest. I used hot glue to attach the Scrabble Tiles to Cork Roll and then cut around them to make the coaster. Once I had that attached, I used a couple coats of Mod Podge over the top of the tiles and let that dry. Finally, I sprayed them with water sealant that I purchased at Hobby Lobby so they would hold up to drinks being set on them. He has a bar in his garage that he is going to use these in.