Snap! Demisphere

Any two identical pieces snap together into a sphere, which can also be used as a container for small items. Download one file, build it twice, and snap the pieces together.

The original Demi-sphere model merely demonstrated how a sphere could be dissected into two identical pieces. In response to requests, this remix turns it into a self-closing container.

Extrusion printers can probably get best results by building each piece on its edge.