I had to replace my bathroom commode. Due to floor conditions from prior use, the installer used copper or brass bolts to install the commode. These were taller/longer than the ones that came with new commode. Covers for bolts could not be covered with original covers that came in the box with new commode. I went to big box store and bought some "replacement covers" and they were too short. I could not figure what I could use to cover the unsightly bolts standing up. I kept looking and thinking WHAT COULD I USE?
The bolts are made long to fit a range of toilets. The plumber or who ever installed the toilet should have cut the bolts with a hack saw to lenght. The caps should never be glued on because some day the toilet may have to be taken up for any number of reasons.
My thought was that using Elmer's glue to put into place would hold it, but not be difficult to remove. Elmer's is not permanent. I agonized about how I could cover them and not be "stuck" later trying to get it off.