For what it's worth I thought I'd share this - I was casting around again for something to use as a mouse mat when my eye fell upon some cork mats Moira got (very cheaply) from somewhere like B&M Stores. Regular mouse mats bobble, fray, tear and slide about but these cork mats don't and, it seems to me, ought to last forever
Maybe they already make cork mouse mats - I don't know - but I'll bet they cost a heck of a lot more than one of these and I've been using it happily for weeks now