12×12 cm square, or 12 cm diameter circle.
In black leather, otherwise you will get discolouration.
Coat in beeswax.


I like them thin, for my leather-bound disk, but if you
want a thicker one, you can take a it in two layers, add
edges vax, add a groove (for the thread) along the edges,
and saw them togather with a nice thick thread. Obviously
this is how you would also do placemats and mouse pads.