I have managed to lose several of the plastic wire shelf ends that covered the ends of some exposed bolts in my canoes. I don't currently have any of the plastic shelf ends around but, as I was searching for those and considering what else might work, I noticed that I have a selection of twist on wire connectors (aka marrettes, in Canada).
Has anyone tried using those to cover the ends of exposed bolts in a canoe? If so, how did they work?

Has anyone tried using those to cover the ends of exposed bolts in a canoe? If so, how did they work?