Thanks for all the nice comments.
I should mention, in response to dunk, that I actually only used hot glue on the one mechanism. This was the one I salvaged from our old Ikea clock and it did not have a threaded bushing and nut as the other mechanisms I bought. This is also the one currently hanging in our kitchen and has a much louder tick than the other mechanisms. Overall, I think the ones I bought are much better quality.