Make your own coasters or trivets. Plain tiles ($.28) Stamp design with permanent ink. Use marker for more detail. When dry spray with clear sealer. Put felt pads in each corner. Less than a dollar each. Makes a great gift!
Leftover tile from the Habitat Restore + a sharpie = Personalized COASTERS! I sprayed my tiles with clear spray paint sealer once I was done and glued fun foam to the bottom to keep it from scratching the furniture.
Just bought 11 cent tiles at Menards and turned it into a coaster/hot plate. First Graders are making them for gifts. Clean surface with alcohol. White tempera paint with fingers, permanent markers and after it is dried I applied two coats of Sax tempera gloss varnish with sponge brush. Add felt pads on bottom for. If they goof up the paint, just wipe clean and try again.