There are a number of sd card lots for sale in units of ten or less, with one or two adapters included. These are ideal for 3D printing and I recently bought one of these for under 3 dollars for each 8 Gbyte card complete with two adapters (from a famous online store named for a big river in South America :) ) The cards worked on my Voxelab 3D printer without needing reformat. So, I made this remix. The key was creating an STL punch that could be used in Openscad to make the card holes. I had a problem too that the original slot size was too small for the cards I was using, so I expanded everything by 10%. The lid is close enough to prevent scrambling during transport but occasionally I would open the box upside-down... so I added some text to the top (the original was in magic marker!!). Both top and bottom can be made without supports, text excluded.
......I am also adding a needed mod as a zip file, much more fun if you get involved. Included are scad files to do two things, one, add sd card tweezers and a storage compartment for keeping them. And twp, a rounded top with option for much better labeling. photos are available.

Voxelab Aquila

Yes

No

15%, low OK