I'm looking for something to use for labels, in a laser printer. I want something waterproof, for outside. I understand that pressure sensitive vinyl labels can't take the heat of the printer; it has to be Mylar, or something. I've seen some waterproof laser labels, that come so many to the sheet, but they're expensive, something like a nickel each. I have 20,000 cuttings rooting now and really don't want to have to pay $1,000.00 (plus toner) for labels for them. I don't care if they are individual labels on a sheet, or just one full size sheet. I have a cutter, and can cut them apart. Any ideas?