Here comes a tip and a clip,compliments of Herb Adler in Geelong, Victoria, Australia.

JACK SUPPORT
"I found a bit of time to make a bracket for the scissor jack that came with the car. I didn’t relish the thought of it rattling around loose in the boot. The brainwave I had was to use a piece of C-section steel. Off to the local metal merchant who happened to have a short section of just the right profile. Cut off about 45 mm, clean up the edges and test. Found that it was “springy” so pop riveted a piece of 12 mm aluminum angle to the back to stiffen it up.


This worked well. Now drill two holes to screw it down, and then paint it. When the paint is dry (next day), bolt into the boot, and also install two little clips for the handle, fit jack, admire finished result, then photograph". -- Herb

I recon you can make the same clip out of strip stock, steel or aluminum, driver's choice. -- Barney