Make your own coasters- tiles, adhere picture/paper to tile with Mod Podge and let dry; Spray a coat of clear spray paint and let dry; attach felt pads to the bottom. Doesn't have to be beer coaster either!
Piet Mondrian coloring pages. These Piet Mondrian pictures are online coloring pages that can be colored with color gradients and patterns. Printable coloring pages are also included if you prefer to color with paper and crayons.