DIY Coaster Craft I bought these tiles at Home Depot ($0.13pcs). I painted them BEHR whilte paint/primer in one (bought sample for $2.50). Once this was dry I grabbed my kid and we went to town. It was so much fun! We made quite a few. Once the paint was dry I covered it with Polycrylic finish ($8.00) which dries clear to protect the paint. I plan to glue felt to the backs. TADA! Instant homemade present from the kiddos!