Non-volatile data memory cards, flash drives and other memory devices are customized by manufacturing core memory units all the same and then covering them by outer skins which may be made to have different appearances and/or tactile characteristics. The skins are slid over the core memory units by hand...http://www.google.ca/patents/US20060038023?utm_source=gb-gplus-sharePatent US20060038023 - Customized non-volatile memory device packages
