Taking my sewing machine with me to GPN really was a great idea, btw. I showed some people how to sew with a sewing machine for the first time and was even able to help repair stuff. For example, someone's backpack strap ripped off, which I was able to sew back on so they didn't have to carry it in their hands on the way back home.
It was really fun and a great way to start conversations with new people. I'll definitiely take it to chaos events again if I can arrange it. I think I'll try to prepare a pattern and some pre-cut fabric for a mini plushie or something next time, so instead of telling people "here's a scrap, you can sew lines on it" they can make a mini project and take the result home though.