| The Golden Ratio has inspired thinkers of all disciplines... |
| | A three-sided mirror kaleidoscope with a fivefold symmetry axis |
| | Pyraminx - the original 'twisty' puzzle! |
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| The original king of twisty puzzles, now in crystal!
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| | Uwe Mèffert's Hollow Pyraminx
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| | A puzzle based on space filling fractal curves |
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| The Dragon Curve was first investigated by NASA physicists John Heighway, Bruce Banks, and William Harter |
| | Named after Bill Gosper, and also known as the flowsnake curve... |
| | The Peano Curve, Dragon Curve and Gosper Curve Fractal Puzzles. |
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| This Tippe Top has an unexpected extra trick... |
| | For dedicated fidgeters only! What a joy only three pieces can bring to idle hands... |
| | Rearrange the custom metal "twigs” until they form a symmetrical shape. |
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| The Pendulum kit is designed to serve as a learning tool rather than a puzzle... |
| | An elegant, transforming geometric puzzle, based on the Yoshimoto Cube. |
| | If you spin it fast enough, it will turn completely upside down, spinning on its stem. |
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| These so-called 'Non Transitive Dice' (Magic Dice) demonstrate a probability that violates common sense and traps the unwary. |
| | Another variation on Non Transitive Dice, this time based on a set of three dice. |
| | A really charming tin toy this one. We like it a lot! |
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| Whichever way you roll them, their width is always the same, although they are not spheres! |
| | A beautiful physical version of Dudeney's Dissection, where the 4 pieces are hinged, so that you can transform one shape into the other. |
| | 'Napier's Bones' is an early calculating device that allowed the user to carry out multiplication and division. |
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| It is not that these beads are hyperactive, rather that they trace out the shape of a hyperboloid! |
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