Shrink screw-holes for a speaker bracket

After removing a speaker bracket to paint the wall, I couldn't screw the bracket back on because the holes in the wall had originally been made with a slightly too-large drill bit. The plugs kept spinning round and coming out.

So I filled the holes with sugru and pushed the plugs into the sugru. I cleaned away the excess then let it dry.

Then screwed the bracket in. Holds perfectly!