While I generally 3d print actual parts for models there is also modeling tools that can be 3D printed.
The Tool holder is printed in modules and can be printed in various sizes and arrangements.
These sanding blocks work quite well
I have printed several different clamps and other various tools found on Thingiverse and Yeggi
All were printed with PLA+ or Filacubes PLA2 which I highly recommend if you have not tried it
The PLA2 prints well and is sandable making it great for FDM printed model parts.
I have also purchased a Creality resin printer and will pop some pictures up at a later date once I Print some custom model parts or detail items with it.