The coronets are tooled and painted leather. I went outside my wheel house a bit and tried my hand at just painting on the heraldry instead of attempting to tool it first. I did this in large part because I was worried that size and detailing required for tooling the heraldry might leave it looking a bit "muddy" (in other words in might have been so small it was beyond my skill to do well).
This was a challenging project due to the lock down. I had what materials I had (mostly the leather) and there was zero room for error. There are a lot of small mistakes here and there, but I had to push forward and ignore them as there was no option to start over. In the end I am pretty happy with them, but as with all things, if I had a time machine I would make some changes next time around.