Those fiberglass rod - plant labels look so amazing! Here in Florida, the plastic labels get brittle and break apart quickly in the heat and humidity. I tried some thin aluminum type labels a few years ago but they got all bent and wonky and didn't hold up for long either.
Great tutorial and photo's on your flickr page! I've got to show that to my husband to see if he'd be willing to cut some of the rods for me. I don't know if there's a Tractor Supply store nearby but I'm going to do some research to see if I can find the fiberglass rods somewhere locally!