This is really a long story. In the eighties, and then in the nineties I even patented my idea:
United States Patent 5,506,013 Lesnik, April 9, 1996: Plastic foam novelty items.
Abstract. A resilient solid foam object which has a part of its outer surface scribed
with a series of connected cuts. These cuts communicate with the interior of the foam object.
The cuts are arranged to allow the foam object to be turned inside out and
are shaped to form a three dimensional structure within the solid foam object.
The three dimensional object is displayed upon turning the solid foam object inside out.
A method of making these novel foam objects is described as well.
So, today I have got that 3D-printed!!!
And you can do it yourself with FILAFLAX.
Stay in touch, Y.L.
I Am A…Artist
Tools I Use…
Design Programs: Blender, MeshMixer