Why are bananas never lonely? Because they hang around in bunches!
A lot of power supplies, multimeters, and other benchtop equipment use standard 4mm banana plugs to connect this-to-that. When you need more, we now stock them! These are handy stackable and retractable Banana Plug cables! The retracting plastic protection bit on the end will automagically disappear when plugged into a device but will prevent accidental shorting to boards or other cables when draped along your desk.
This is the half-meter-long black version. Check out the red version here.