Bl33K
A redesigned Bic Crystal that splits case from cartridge, so only the refill is disposable.
Bl33K takes the Bic Crystal, probably the most disposable object in a desk drawer, and redesigns it entirely for 3D printing. Case and cartridge are separate parts: the case stays, only the refill gets thrown away. The idea is to make an object last that was originally built to be discarded.