Throughout his career, Kauffman has explored the use of unorthodox materials.

An even greater challenge 20th-century art presents is in its use of unorthodox materials and techniques.

She's one of my favorites, with the way she uses such unorthodox materials.

Besides the unorthodox material found in the dramatic films, there was another odd chord struck throughout the evening.

But what is especially radical is the choice of such an unorthodox material.

The odd shapes and unorthodox materials marked Gehry as a maverick.

There Fabro began to expand his response to unorthodox materials such as marbles and silks.

But Ms. Silverthorne's theatrical instincts and her hand's-on engagement with unorthodox materials come to the rescue.

His unorthodox materials went unremarked.

Speaking then, Lord Lloyd Webber recalled how the show, based on unorthodox material, had struggled to find investors before its first run in London.