I have already presented a carved plaster free-form sculpture and a plaster freeform sculpture made in a balloon.
This plaster sculpture is made with a stencil and cardboard inner workings.
I find idea and result amazing! :)
Links:
Plaster Sculpture (Make a Plaster Sculpture from a Stencil)
Here at unikatissima:
Plaster Free-Form Sculpture
Plaster Freeform Sculpture