Below you can find some pictures of the stage leash I use.
In fact I have several and still have to decide between the 2 below.
The first one is the classic stage leash; built from a piece of 5mm breaded nylon rope knotted together with a fisherman's knot.
The piece of hose is to avoid twisting.
In the future I plan to use a regular boltsnap instead of the double-ender to give a more secure connection.
The second is a more fancy version made up from a piece of rope, a boltsnap and a stainless steel ring.
Besides the fact that it looks more cool, it's also easier to clip stuff onto and keep it organized.
The drawback is that it's a bit "stiffer" so maybe next time I may lose the piece of hose...