We all know what happens when you have to disconnect a 9 Volt battery from it's clip: sooner or later, one of the two wires breaks off. No matter how expensive the gizmo was, they all use the same low grade battery clips.
This topic is about getting top quality battery clips for free.... Yes, no money involved.
Just get yourself a 9Volt blockcell, peel off the metal jacket and extract the battery clip:
Read all about it in the Fruttenboel Section.