I plan on doing fiberglass pods, but don't want any downtime right now, so that can wait until the fall.
Had some spare carpet and made some mounting rings, so this is what I ended up with. Looks better in person as the flash makes the carpet look different shades.
Speaker rings are wrapped in some gray vinyl I had laying around, but I might redo them in gray carpet.
NOT show quality, but simple, functional, and does look better than before.