We don’t have a fogbuster, but we used two strips of 3M VHB tape that comes in the KOP and stuck a mister to the side of the spindle clamp. We cleaned both surfaces then clamped it for a few minutes after install and it hasn’t come off.
Might be trickier with the fogbuster because it doesn’t have locline, maybe bending that brass tube so it points at the tool, or double stick the magnetic base it comes with?