I'm done with the E-Caps.
I cleaned off the Mallory labels on the 3 tall caps. I then polished C116 can using Mothers Mag wheel polish. Followed by 2 coats of wax.
I then placed the cans on each cap and taped them so the can wouldn't come off when simply removing the cover. I use 3M Multi-Task tape for this. It is not like scotch tape. It goes on smooth and you can remove it in one piece. I use this stuff to seal the hinge gap on my control line model airplanes.
C116, the tall uncovered cap, the can is simply placed on the base. It is protected from getting all scratched up.
Here is a picture of the tape that I use:
