I gave you a thumbs up because you deserve one for this good idea. Oh, heck, have an acorn as well.
However, some old and slightly backward people (like myself) are still reaching into the old #1 Mom coffee mug with the broken handle hoping there is at least one ball point pen with ink so we can write good old paper labels and cover them with sticky tape, or the extremely modern concept of the Sharpie marker on a bit of old plastic window blind slat...now where did I put that Sharpie?
I will come back in my next life ready to make plant labels!
Thanks for a really up-to-date idea!