Shepherd's whistle
They are also produced commercially. Simple whistles may cost less than 1 USD in bulk; expensive ones may be quite ornate. They are commonly made of plastic, aluminum, stainless steel, silver, brass, titanium, Corian, jade, buffalo horn and other materials.
Volkswagen Beetle
However, demand for the Beetle was relatively high, especially in the 1990s, with the workforce increasing at the start of the decade. The price of the base model (without even a radio) was pegged with the official minimum wage, by an agreement between the company and the government. In 1990 it cost US$5,300.