Although the age of information appliances is getting close, current remote control devices are too awkward, and we cannot control sophisticated equipments without using graphical computer terminals. We propose a new interaction technique called the Real-world GUI, where users can control real-world appliances just like performing GUI operations on graphical computer terminals, using a new input device called the FieldMouse. FieldMouse is a device which consists of an ID recognizer and a motion sensing device. Using a FieldMouse, various GUI tools like buttons, menus, sliders, and others can be used on any surface and objects, just like using a mouse on a desktop computer. Users can control or program various information appliances as easily as performing GUI operations on graphical computer terminals.