During the Second World War a type of trench art known as “Tek art” began to be produced by servicemen, civilians, and prisoners of war. It involved the incorporation of colourful plastics into trench art designs.
The term was derived from the “Tek” brand toothbrushes issued to Australian service personnel from late 1941. Made by Johnson & Johnson, it was first produced in the United States in the late 1920s, and went on sale in Australia in the early 1930s. They were the first toothbrushes to have coloured plastic handles instead of wood.