okay, im building the monitor section for my showcase cab and i started routing out slots for the speaker panel sections.  however, after i started doing it, i started thinking i could just route out a big circle and put a speaker grill in.  but that wouldnt look very good...at least in my opinion...on a showcase cab.  so my next thought was to get some kind of black speaker covering....either wire or cloth....to cover the front speaker panels, giving it a cleaner look.  plus if i cover the whole panel with some kind of nice material, then even if i put some little speakers in it (nice sound though) it would look like a big speaker is installed, thus keeping the large showcase feel.  so my question is, where do i get this type of material to cover my panels?  the panels themselvers are 7"w and 27" L.  they will be standing up vertically obviously.  any suggestions?