I'm currently sculpting a model for a character that is falling from a great height. Its clothes are blowing upwards and billowing out in a way that I cannot replicate using normal sculpting materials such as clay, and which are too complicated to create using resin and silicon molds, and too thin for polymer or epoxy sculpting materials.

I would normally use cloth soaked in UV resin to stiffen things like billowing cloaks, and hold them in place while they hardened, but the shape is too complicated for that this time.

I'm looking for a stiff cloth analogue that can be shapes to appear that it is being pushed upwards by the wind, strong enough to hold its own weight and shape while I apply a stiffening medium, but thin enough that it would look like cloth on an 8" sculpture.

Thick lead foil was the previous go-to, but that's no longer an option.