I also bough tags from DP Industries.
For those of you who are concerned about the ink fading off, simply use HVAC (Heating, Ventilation, and Air Conditioning ) aluminum tape, available at home depots, and other building supply stores. Simply write on the aluminum tape, cut it off to the size of the DP Industries label, and now you have a METAL EMBOSSED tag.
If you are not using labels, this tape sticks to anything, the side of the pot, wooden coffee stir sticks, etc.
The main advantage of the HVAC tape is that it is very is to score with a ballpoint pen.
Hope this helps some of you who have lost the identification of plants, due to tag fading.