Handmad Ceramic Tile Coasters Set Of 4 - 10cm - Fluid Painting. I am a free style, modern fluid painter and I do coasters and paintings, in acrylic paint. I paint then in a ceramic tile and they are 10x10cm, covered with heat resistant varnish and the bottom is fully protected in cork. I simply adore doing this although it is quite hard work from the start to the end. If you have any questions, please feel free to send a message. It will be a pleasure to answer.