I have a spot where I want to place my power switch and it is slightly too big. It is big enough for the power switch to fit, but too big for the small screws to get a full wall around the holes.

That aluminum is going to have an adhesive layer over it, so aesthetics are rather unimportant so long as the outer surface is relatively smooth.
I think I have several options here, but I thought I would ask for recommendations before I try something out.
