How would you make an organic shape like this?

sic

 I want to make some hair textures in this type of style but im having issues getting that really specific shape down  and just in general trying to get any shape thats really organic like this. Does anyone know a good workflow for getting the type of decals like this?

poopipe

Theres a spline based generator available for a few dollars.  I forget what it's called but it was certainly announced on polycount so have a search. 

Doing this sort of thing using image processing is simple enough but pretty difficult to control - you could try warping trapezoid transformed shapes to get the main form and a distance node with a curve on it will get you the profile