Cut the 1kg White Air Drying Clay block into thirds.
Roll out the clay with a rolling pin to a 1.5 cm thickness.
Print into the clay using the Wooden Block Printing Stamps, overlapping the designs at random.
Cut out the coaster shape using the largest of the Wilton Cookie Cutters and take away the excess.
Paint a base layer in a light colour or white acrylic paint and leave to dry.
Water down the darker coloured acrylic paint and paint over the coaster liberally, letting the colour fall into the deeper grooves, and leave to dry.
Coat the finished coasters in Mod Podge to create a glossy finish once dry.