The nests of Vespa hornets are made out of a paper substance produced from the mixture of saliva with wood pulp.

Modify > Modify physical state > Material characteristics

Make > Physically assemble > Structure

"The powerful mandibles of the hornet are…used to cut and chew wood to make its nest. Wood pulp is mixed with saliva and converted by the hornet into a paper substance from which an elaborate tiered nest is made which may house thousands of individuals." (Foy and Oxford Scientific Films 1982:159)