Stedman Proscreen XL Pop Filter
This is a higher end pop filter for reducing the sound of loud "P" s which can ruin a good take. The Stedman filter is nice because it has a screw on clamp (good for permanent installations) and uses a mesh instead of a fabric which passes high frequencies better and is semi-transparent.

Background image by Pauline Moss. at http://paulinemoss.deviantart.com/art/Stars-307119758