Made this holder for my label maker in the same style as the pencil holder. The inner dimensions are approximately 78mm x 28mm, so it could conceivably hold anything that is roughly that size or smaller.
I used two M3 screws to attach the storage box to the rail attachment.
This is the actual label maker in the photos:
https://www.amazon.com/gp/product/B08SL7SFBX/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
I included the original rail attachment so you can print them together.
The author remixed this model.