Hi.
I started trying something then I drifted randomly around…
I think better/proper software can/should be used for this.
But… can we be lazy and try with Kangaroo… ?
I think you can do a flat mesh with actual “holes” (not just cuts) so the vertex of the 2 different side of the cut are not merged together.
There are just 2 tricky steps:
remesh your shape to have uniform triangulation (useful and needed for uniform deformation)
(sadly kangaroo2 remesh components often fail/crash for one reason or another, fix it manually for your shapes)
find all the folding sets of points (there was an “origami” component? Can’t find it…); i made a c# addition
…then apply forces as usually.