Inexpensive and inconspicuous deck cover / grill mat for 22" kettle ?

[Ummagumma]

Looking for ideas. My biggest gripe is the mess left behind when emptying the ash catcher.

Something not expensive, easily obtainable at places like Lowe's, HD, or Walmart, not clashing too much with dark brown deck, easy to clean and move.

[MacEggs]

Here is an old thread with some good info:

http://weberkettleclub.com/forums/weber-kettles-accessories/recommend-a-floor-mat-or-pad-please-i-damaged-3-or-4-deck-composite-boards/