Need adorable coasters? Make them with clay. Sturdy coasters require a fair amount of clay each – as this cute tutorial from The Lovely Drawer shows – but it makes it worth it. Use glass or ceramic paints for a moisture resistant decoration like the tutorial does or other surface decoration ideas such as liquid clay and inks or even varnish over powders.
If you want to use less clay in the process, use store bought cheap cork coasters and glue a clay veneer to them for decorative effect.