How would I make this shape?

[fierce mortar]

CrRgWbP-:RcWySmCw:

I am trying to design my first MAM from scratch (No assistance on that overall please)

But I cannot work out how to make that shape, specifically the pin.

[burnt goblet]

for a MAM it's easier to use standalone pins : https://shapez2.wiki.gg/wiki/Shape_Patterns#Standalone_Pins