Systems and methods for automatically accessing Internet information and local applications from another local application on a handheld Internet appliance is provided. The toothbrush 10 includes an outer body 12 that receives a toothbrush assembly 13. A gas supply arrangement supplies pressurised gas to the hollow tubular insert at a selected stage during the injection process whereby to form the functional cavity in the part. Similarly, the terminals of the MCU that are connected to the corresponding terminals of the IC are disposed near each other. Novel semiconductor devices and structures are fabricated using such methods.