Silver and gold

Silver

Papier mâché and paint

Stainless steel and Bronze

Charcoal on paper

Electrostatic print, watercolor and metallic paint on wove paper

Graphite and charcoal on paper

Graphite on paper

Conté crayon on paper

Gouache on paper

Gouache on paper

Gouache on paper

Ink on paper

Graphite on wove paper

Ink on paper

Ink on paper

Ink on paper

Graphite on paper

Graphite on paper

Graphite on paper

Pastel and chalk on paper

Anodized aluminum

24k gold-plated brass, 14k gold, and glass

24k gold-plated brass, 14k gold, and glass