/3/ - 3DCG

>>955183
>Take an icosphere into edit mode
Ideally one with 2 subdivs
>poke faces
not sure exactly where the operation is, so I just use the search function
>grab the center verts pf the poked faces
select one vert shift+g>amount of connecting faces
>scale outward,
>bring down,
>optionally smooth with subsurf.
It's not super clean geo, but if you're sculpting anyway, it's a good starting point that'll get you part of the way there and you can just remesh and remove what you need with the smooth tool.
If you're insistent on being in sculpt mode though, I'm not a sculpting expert, but I think the snake hook is the tool you need.