Jitterbug Unit
![Jitterbug Icosidodecahedron (Tung Ken Lam)](/small/img/models/i/icosidodecahedron-jitterbug-tung-ken-lam-400-031f3fb7d.jpg)
The Jitterbug Unit can be used to create a number of polyhedra which can undergo the jitterbug transformation (devised by Buckminster Fuller) wherein they collapse and fold inside, transforming into a different, smaller polyhedron.
Instructions for folding the unit are available online.
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