The components inside a thumb drive are generally quite standard with its chip and interface. Hence, when people are referring to customized thumb drive, it is usually the customization of the flash drive’s casing. It is the housing that protects the circuitry of the flash drive. This may include cases with materials such as plastic, metal, rubberized materials, leather or a combination of materials mentioned. These custom made flash drive cases comes in a wide range of shapes and sizes including key shaped ones, credit card size, some with pen and laser pointers, leather keychain designs or even some that are miniature replicas of a physical product.