The generic cutlery holders will probably fit most cutlery (I designed them to fit an Ikea set).
There is also one designed specifically for the Muji set. It is able to hold 12 sets. The knife holders are probably too specific to this design and will probably not fit other sets.
Note that the 1 unit and the Muji ones are 5.5 units long. With gridfinity base (without magnets). My goal was to store as much cutlery as possible in as few gridfinity units as possible.
You might want to print 1 cm or so to test fit.
I am uploading Fusion360 files, so you can customize them as needed.
Enjoy.
The author marked this model as their own original creation.