There's a grommet hanging on the cable, just outside the aluminum bulb housing. The hole is too small for the grommet so it just sits there useless.

So I have to get the cable entirely out of the way to drill out the hole.

While everything's removed I'd like to take a stab at fabricating a mounting plate that surrounds the grommet hole, taking advantage of the flat surfaces adjacent to the grommet hole. The plate would have two holes. One for the screw, which is only a few millimeters from the grommet hole. The other hole would allow the plate to slip over the grommet and contact the flat surfaces adjacent to the grommet hole.

The electronic puck inside the housing will come loose, but there are two little stripped out screws holding the electronic puck together so I can't get to the soldered ends. The two screws are totally rounded off at the heads so I can't disassemble from the inside out, That means cutting off the plug. Then everything - the puck and what's left of the cable - could come out puck first thru the open face of the aluminum housing.

Maybe I'm reinventing the wheel. Maybe others have figured out ways to improve their MagicShines?