Triangoes Jr.: some neat patterns 
Above are just a few samplings of the octagonal patterns that you can make with the Triangoes Jr. set. Some have diagonal symmetry, some have vertical symmetry, and some even have "rotational" symmetry. Notice that in some designs the two colors are opposite each other, like yin and yang. Those are some of the most challenging images you can create with Triangoes Jr., especially those that have several types of symmetry at the same time. And there are hundreds of other shapes to make.
If you find any new patterns for this group, or prove there are no others, let us know!
Here are a few more complementary pairs:
Jack Heaney, a friend, customer and longtime puzzle lover, has found an amazing yinyang color solution to the pairs challenge (above left). He calls them Polyanimals. Jack also proved the pair can't be solved with colormatching. However, the coloropposite pair (right) was satisfyingly solvable. Finally, there's no end to the fun shapes you can create with the colors. For starters, here's a fish. We'll add more critters here as we find them.

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