Modular solids are polyhedra made from separate pieces of card (‘modules’), which lock together without glue. The unfolded modules can be flat-packed for mailing or for holding in a special presentation wallet until assembled by the recipient to create the final three-dimensional form. Any of the envelopes in chapter 4 would be ideal for this purpose. The transformation of 2-D modules to 3-D solids gives them a real ‘wow!’ factor.
It’s a simple puzzle to fit the pieces together, so you may not need to give instructions for their assembly with the kit. If the surface graphics continue from one module to the next, this will give a strong visual clue as to how the pieces align with each other, helping someone ...