A hinged dissection is a sort of geometric dissection where the individual parts are hinged together amd rearrangement of the parts can change the appearance of the object.
Sword and Shield
This hinged dissection is generated by simplifying two target shapes into pixelated enitities and figuring out a way to transform between them. The design process can be described by the following steps:
This table can transform between an equilateral triangle and a square. The dissection is a variation of Dudeney's dissection and is based on the work of Greg Frederickson .
 Designing a table both swinging and stable.
College Mathematics Journal Vol. 34, No. 4, pp. 258-266, 2008.