Diamond, Dodecahedron, Kawai Joint

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A stunning diamond or dodecahedron of 12 identical triangular faces is derived from the cube-based Kawai half-cube joint. Two copies come together to form an attractive diamond, while two copies combined with a half-cube result in a nonahedron, a nine-faced polyhedron with an unusual name. This intriguing desktop toy boasts an appealing aesthetic that kids may adore for its beauty alone. Printing it requires no support or raft, making it easy and fun to create. As it turns out, this design is perfect for kids, as one young tester found himself enthralled by the diamond's spinning motion between his fingers. He even suggested a stand be built so his fingers wouldn't get hurt from repeated spins! Thankfully, this was a great idea that made the toy even more enjoyable to play with.