Rainbones

Donald E. Knuth and George Miller along with Stan Isaacs made a plastic toy, rainbones, using interlocking arcs. The pcs have to lie flat on the plane, i.e. Rainbones can only realize (2D) planar solutions.

Catalog number 200623 exchange gift at IPP27 in 2007 in Gold Coast, Australia.

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Age of Puzzles publication, Rainbones section, w/o/ persmission

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a single rainbones solution

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One each Rainbones Solutions for "warmup", 8, 11, 12

The 'Warmup' is a partial solution, involving the 1, 2, 4, and 5 bones. These can also be done with LangTominoes.

References