Print settings:
no support
holder: PLA (infill 50%)
stamp: While flexible materials like TPU are preferred, PLA can also be used—just make sure to sand the surface for better ink absorption and cleaner prints.
For best results, once you've found the ideal stamp design, use strong adhesive to permanently attach it to a holder.
There are also attached photos with a 150% scaling.
Attribution: Graphics plazza images
The author marked this model as their own original creation.