Origami Cube https://www.mathematische-basteleien.de/oricube.htm
How to make the Origami Cube
Origami Seamless Cube 03 Youtube „ORIGAMITO“ Wie man
How to make the Origami Cube
Origami Seamless Cube 03 Youtube „ORIGAMITO“ Wie man
The heart – a mathematical figure.
The German name Apfelmännchen (apple man) uses this