I searched “tag board” on Amazon and got lots of options - from pre made tags to sheets of the material. Something there would certainly be a good substitute for your tags.
I hope you are back online and in business with your Glowforge.
I had never heard of tag board. Checked it out and it seems to be a paper product whereas the tags I have been using have a slick surface and seem to be some kind of plastic. I tried the cardstock (have lots of it available) but the marking with a Sharpie is not clean and crisp. Same with file folders.
Yes I am back on line thanks to a very generous and gracious member of this forum. He didn’t even mention, well not in my hearing, anything about “Fat Fingers” or “Trouble between chair and keyboard.”
And eflyguy you came up with that design in about 1/100th the time it took me.
I think Bristol board is used for tags a lot. It’s a thin cardboard about the weight of a cereal box or lighter. You can get it in tablets at Michaels or Hobby Lobby.