I feel stupid for having to ask this, but I acquired some train marks from Moyira Studio for my C62 locomotive to complete my Hato Limited Express. (See the link below to get an idea of what I'm talking about).
https://www.1999.co.jp/eng/10119471
The problem is that I cannot figure out how to place it on my locomotive since it will not slip onto the prototypical metal post that was built for it, nor does the locomotive have an internal magnet to hold it in place either (and even if there was a magnet in the locomotive for that, it would not help since even neodymium magnets struggle to hold onto the alloy the train mark is made from). So how do I place my train marks? So far, I've tried fooling around with loose pieces of ferromagnetic staples in the hope that I could glue a bent staple to the mark then externally hold it onto the locomotive with a magnet I found in the garage, but the results have been mixed.