I have some two part brass eyelets that I want to fit to the seat of the Pino, so I can tighten the fabric up. Originally (20 years or so ago) it had elasticated loops and webbing straps for this purpose, but the the elastic no longer is. I'm thinking eyelets plus suitable cord to lace it.
Anyhoo, as I say, I have the eyelets plus a setting tool, all borrowed from The Girl. YouTube suggests getting a punch of some sort to smack through the fabric to cut a suitable hole, or failing that, get creative with a very sharp knife. I don't have a punch so am considering getting a tube of suitable diameter, heating it up and burning a neat hole in the (some kind of) plastic mesh of the seat. The needs to be 8mm diameter. I'm struggling to put my hands on things in my boxes of tqt that are the right size.
What common household objects are metal tube 8mm od?