You can use metal snips and cut strips from aluminum cans, then incise information on the aluminum with ball point pens. The ink won't show up, but the incised information won't be deleted by the sun, anyway. Or flex your pottery muscles and make clay tags to bake in the oven if you're short of kilns. Margaret L I am starting my planting for the coming season and was wondering if anyone use a permanent tagging system. I've noticed that so called permanent plant markers tend to fade after a month or six and I need to especially this season be sure of what each plant is. Are there any permanent tags or markers that are truly permanent? Thanks to all who have sent me seeds, I will respond in kind once I have mature seed to share. Most of my seed this year has come from kind folks on the list. Marc Winterburn The Oz Chilli Man