Moulds are made either from the client's own 3-dimensional computer images, or images generated in-house on behalf of the client.
Vacuum form mould masters are generally made from medium density fibre board for reasons of economy.
This mould was made to vacum form a cover for an air-conditioner that is mounted on top of a bus.
Above is a blister pack mould for a lock set with the component to be packaged alongside.