My suitcase button broke (like so many others before me) but none of the models here or on Thingiverse was quite right, so I made my own.
I started with an SCAD file that I asked ChatGPT to help me set up. I've included it here so you can create your own base shape with the relevant dimensions.
I finished the design in TinkerCAD, adding fillets (search for the MetaFillet object in the Shape Generators section!) and rounding off the top. I also added my initials using the text tool, but for obvious reasons I didn't include this in the STL file here :)
The author marked this model as their own original creation.