papier-maché

from The Century Dictionary.

• noun A material composed principally of paper (to which other substances may be added to impart special qualities), usually prepared by pulping a mass of paper to a doughy consistence, which can be molded into any desired form.

from the GNU version of the Collaborative International Dictionary of English.

• noun A hard and strong substance made of a pulp from paper, mixed with size or glue, etc. It is formed into various articles, usually by means of molds.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a substance made from paper pulp that can be molded when wet and painted when dry