I know some people still use magnets but this is a safer and better idea and easy to make for us blf folk.
I’m posting the link to show the idea only, this looks easy enough to make at home
Otherwise I was thinking of soldering, but my soldering skills are mediocre at best and probably set-your-house-on-fire at worst.
With soldering, I understand you need scratch the flat top a bit for the solder to bond better. Do you add any flux to it as well?
Or can you just melt the solder wire and plant the molten blob on to the flat top and let it cool?
Those blobs looks great.
Done my fair share of soldering over the years but I am shure more than me would like to have a small video on creation of those with info. on watt, tip, flux?, preparation? and solderwire mix.
I did actually do a search on YouTube a couple of days ago and for once came up empty.