Attachable label for seedlings and pot plants

For my balcony, i grow some tomato seedlings. Because they all look very similar to each other as long as they are small, i would like to label them.
I use plant pots witch i make out of old newspaper. And for this pots i have made this labels.

The video to this project: https://youtu.be/ihZBykvZeqA (german spoken language)

Buy this labels from my onlineshop: https://ewap.ch/produkt/pflanzenschilder/

Materials i used: (affiliate)
Labels: https://www.amazon.de/gp/product/B0006HIQP8/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&camp=1638&creative=6742&creativeASIN=B0006HIQP8&linkCode=as2&tag=ewap-21
Labelprinter: https://www.amazon.de/gp/product/B0006HIQP8/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&camp=1638&creative=6742&creativeASIN=B0006HIQP8&linkCode=as2&tag=ewap-21
Gluestick: https://www.amazon.de/gp/product/B0006HIQP8/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&camp=1638&creative=6742&creativeASIN=B0006HIQP8&linkCode=as2&tag=ewap-21