Summary

Simple magnetic key holder!
The fobs have the magnets printed inside of the part, so they will require a pause. The magnets are superglued into the full holder. (more filament between the magnets makes for a much weaker connection)
Magnets on Amazon: amazon.com/dp/B0CDH2HCV9?ref=ppx_yo2ov_dt_b_fed_asin_title

If you have heavy keys they might not hold :(