Darwi is a brand name, they produce a number of clays ans pastes used for sculpture and repair applications...

A papercrafts glue, here is the recipe...

Clay recipe included. An easy to make sculptural clay, dries super hard and can be sanded, great kids craft, and can also be used for sculptural arts too...

A polymer based clay-like substance used for jewelry making, modelling, sculpture and other arts & crafts....

Traditionally an earth based material used for pottery & sculpture, and a term used to describe almost any modelling material...