Mild steel, pebble, brass, lacquered copper wire, and leather

Papier-mâché, stainless steel, sterling silver, fine silver, balsa wood, and graphite

9k gold, stainless steel, fine silver wire, and papier-mâché

Stainless steel, papier-mâché, lacquer, graphite, 23k gold leaf, and silver

Monel, sterling silver, and 18k gold

Stainless steel, papier-mâché, and 18k gold

Silver and acrylic

Gold and acrylic

Acrylic and sterling silver

Aluminum

Steel and gold

Steel and Neoprene

Gold and acrylic

Neoprene-coated steel and wood

Neoprene-coated steel and wood

Steel and Neoprene

Paper and steel

Colored pencil and graphite on gray laid paper

Colored pencil and graphite on wove paper

Pencil on paper

Pencil on paper

Pencil on paper

Graphite and ink on paper

Graphite on paper