Oh my, I had NO idea this mat as going to be so in demand! Maybe I should start making them!

Far as I know, the SPCA volunteers make up a bunch for sale at their store and for the show. I haven't a clue how much 'nip they put in them; not even sure if it is refillable! They had many different materials, you sort through and find a pattern / print you like. This was the last one of this material.

Sorry I'm no help.