At this time, he worked with unconventional materials such as Lycra, rope, wood, mirrors, and bronze.

Found objects and other unconventional materials have also formed the basis of installations and sculpture.

Conceptual artists experimented with unconventional materials and processes of art production.

She is known for her large-scale sculptures composed of unconventional, and often organic, materials.

But Burri's influence, especially his use of unconventional materials, extends far beyond the Italian borders.

Its subject is time, and its familiar, if unconventional, materials are uniquely of their times.

And there are the unexpected, the unconventional materials.

That is where unconventional materials come into play.

Many artists showing at the Contemporary Museum use unconventional materials.

It makes use of unconventional materials, such as chain link fences and corrugated steel.