This is a worry stone or a stress reliever as some might call it. I designed it for fun, because I always wanted to have one. It is good for fidgeting around or in stressful times. This is a pretty hard print due to its unique shape so please the print settings below:

Print settings in prusa slicer 0.07mm (ULTRADETAIL)

PRINT NOZZLE 0.4, but 0.25 might be better (I dont know didnt check)

You will need supports from baseplate and a brim.

You will also need to sand it down after printing using high grit sandpaper (800 or more, the higher the better)

I printed it and sanded it down, there are still some pieces of plastic that I left out, but it is not sharp anywhere, so I left it as it is.