For safety and liability purposes you can't really discuss making them here, but you can just do a google search and find plenty of youtube videos and stuff like that.
Don't just do what looks like the "Cheapest" or easiest method. Take your time learning about how the real professionals do it, and be prepared to have plenty of materials for testing purposes, as I know I went through a few spools of nichrome wire in different gauges before I had anything I'de actually consider stuffing into a motor.
There are companies that sell pyrogen kits, but they are a little pricey, so if you really must make your own pyrogen, at least do plenty of research and make certain you have safety first and foremost in your mind.
A lot of folks have fine results making their own nitrocellulose lacquer, but it's a pain in the butt IMO, so I just ordered my NC Lacquer from Firefox. It has the correct properties for making igniters, and I don't have to play around with stuff of unknown quality.
If Chuck sent you that link, follow his advice, as he is very knowledgeable in this area.
SAFETY FIRST!!!