I found some time today to run with George's tip on #30 wire for igniters.
I didn't have wire anywhere near that small, but what I did have was some plain old 18 gauge multi strand automotive wire from Walmart. Multi strange is the key, because that means I have a bundle of iddy biddy wires.
You could just clip, strip, and unwind a section, and there you go. But I took a different approach. I made fusible links (igniters) like so: cut a short section and strip both ends, but strip way more off one end; then strip a center section by moving the insulation towards the long end. So now you have two bare ends, and a bare center section. On the center section, cut all strands except one. There it is.
I didn't have a lantern battery, but I did have my extra mower battery, so the test begins. The link went white hot and broke in less than a second. Next test: I folded a piece of duct tape over one with a little bit of Goex cannon power. Yeah boy, I like where this is heading.
I think I will try and find smaller multi strand. A want a size that will fit in the fuse hole when doubled over.
I see you guys have shown some fine commercial igniters, at good prices. But I am sort of an improviser at heart.