No that is very cool. I have a friend that is into the fairs. He does medieval metal work... chain mall and the like. Hand hammered breast plates and things of that nature. I bet those are some cool pieces.
I have a couple friends making chainmail. Too tedious for me to pursue.
Oh, no that part of it is way less nerdy - in a way, at least. The nerdy part for me, is the academic approach, trying the best I can to recreate the techniques and approaches of the period.
I've never had the patience to do any armour either, though most of the guys from my groups have made a lot of stuff themselves. Up until recently, I've kept to fighting. But now, getting older and starting to have kids, we find that our style might a bit too hard on our bodies, so we have started looking for alternative things to show the audience. Things that gives a lot fewer bruises
Here is a vid, a couple of years old, of me and two others making a show at the biggest heavy metal festival in Denmark (we do that kind of stuff as well)
https://www.youtube.com/watch?v=eq09xo1mkRs
I'm the slender guy with the helmet with the cone shaped visor