Whether you want to switch a device (e.g. ON/OFF, Hi/Lo, Hot/Cold) or pull the 'trigger' on your finest sculpture, there's a pull cord button for every occasion.

There is also a blank version for anonymous mode.

The hole is big enough to accommodate any cord or wire.
I've added a simple schematic which shows the main dimensions.

As usual the stereo images are of the cross-eyed type.