3x6x6 (truncated)A fully functional cuboid made by hand through eliminating two layers from a 6x6x6.
3x6x7A fully functional cuboid hand made from a 7x7x7.
3x7x7 (extended)A 3x7x7 cuboid, built with extension on pieces of a reduced 7x7x7.
3x8x8A pillowed 3x8x8. Made from a 8x8x8.
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