In Wall Speaker Grill

Why not build your own grill? You can buy fabric from a lot of places, partsexpress.com sells grill fabric in several colors.
I just use 1/2 or 3/4" MDF when I make my grills...use jag saw or router for the cut out, then use 3m adhesive spray, staples, etc, to stick the fabric to the grill.

I am installing a home theater system in my basement. I would like to use a subwoofer that I already own. I would like to place the subwoofer behind a that I can access from the other side. My only problem is that I cannot for the life of me find a speaker grill sold separately to attach to the wall in front of the woofer. Does anyone have any ideas?

I will give that a try.