The creation of physical-world interfaces seamlessly integrated with the physical environment poses new implementation and interface challenges for the Tcl language. 3wish is a suite of [incr Tcl] class libraries and C/C++ extensions which supports user interfaces integrating distributed physical sensors, displays, and 3D graphics. The poster presents an overview of 3wish, its application to physical-world interfaces, and its implementation of distributed sensors, displays, object proxies, and platform-independent 3D graphics.