Hmmm. Worm Spit has everything you need to learn another post-apocalyptic skill (assuming the moths survive the nuclear holocaust).

I got started looking at the facinating technique of silk reeling and then moved from there to the worm feeding and care to changing their bedding to killing and dissecting the insect for their gut. And finally there is the final product.

This is a facinating process that produces some of the most beautiful and sought after materials for textile work, with a rich history. This is a wonderful website with lots of tips and tricks, and very interesting pictures.