On Thu, 5 Nov 2009 16:45:17 -0800, "Nonny" wrote:

On a number of occasions, I made coasters of either slate or
marble, complete with a ground in recess for the drink and a cork
backing. Over the years, I'd guess I made around 500-600 of them
in batches of different sizes, mostly to give away in sets.

Some pictures posted to ABPW please?