Case-Mate ( had added the Colorways case for the iPhone 4 to their Constructibles Collection. A complement to the Quartet and Stacks cases launched last year, Colorways is made of three separate primary color pieces that overlap to yield a total of five colors when mixed together.

“One of the design innovations that Case-Mate has championed the past year is the idea of modularity — or what we are calling ‘constructibles’,” says Erik Attkisson, chief marketing officer at Case-Mate. “We understand that ‘do-it-yourself’ and customization are key trends with consumers and Colorways complements the movement by allowing consumers to create their own stylish accessory.”

This three-part modular case creates a kaleidoscope effect that evokes a feeling of discovery when the pieces converge and new colors appear, he adds. It costs US$29.99.