Well if you are looking for a stock set of gray mats here you go. There was another set on ebay but sold for $150 and free shipping a couple days ago. 1993 MUSTANG COBRA ORIGINAL FLOOR MATS - OPAL GREY - eBay (item 200583562845 end time Mar-12-11 14:47:02 PST)
Those other ones never sold Willy:
1993 Cobra Mustang Floor Mats Opal Grey NOS - eBay (item 280638073085 end time Mar-08-11 19:43:34 PST)
I've still got my NOS grey set. Not really sure what I'll ever do with them.....lol!