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Other N-Sided: Four
Hoberman's Brain TwistA vertex turning tetrahedron that can turn insideout
Holey TetrahedronA holey variant of Jing's Pyraminx.
Hyper Mini Tetrahedron 18 mmA Halpern-Meier Tetrahedron with 18 mm edge length.

IAS 2005 DCD giftA promotional item ordered by the company Ordina for a small trade fair in 2005. Also used as gift for the DCD 2005.
Jade PyraminxSpecial edition of Jings Pyraminx for Meffert's Jade Club members.
Jing's PyraminxThe Jing's pyraminx was created by Adam Cowen and was produced by Uwe Meffert in 2009. It is a pillowed Halpern-Meier pyramid, based on the skewb mechanism.

Junior Ghost TetrahedronThe concept of the Ghost cube applied to a 2x2x2 and subsequentially modified into tetrahedral shape.
Junior PyraminxTotally trivial tetrahedral cousin of the 1x1x2.
Junior XenomorphixThe concept of the Xenomorphix applied to a 2x2x2.

Kevin's TetrahedronA 3x3x3 transformed into a tetrahedrons shape. Built with "cut and paste" method.
Krystian's PyramidA subset of the Big Chop in shape of triangular pyramid.
Latch PyraminxThe principle of the Latch Cube applied to the Pyraminx.

Magic Cube PyramidA modern mass produced stickerless pyraminx.
Magic Cube PyraminxA knock-off pyraminx with prismatic stickers.
Marcos PyramidA Square-1 in midturn and afterwards reshaped into a tetrahedron.

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