1) Feature of some crustaceans 2) Kind of crab 
A scenery base made by laying plaster-impregnated gauze over a light support structure such as cardboard.
A scenery base made by dipping paper towels in plaster or using plaster-impregnated gauze and laying it over a light support structure like cardboard.
A waterproof outerlayer. Best suited to poor weather. Typically less breathable than a softshell.