Hepta-GemA face turning heptagonal dipyramid (a jumbling-only puzzle) truncated to have a handeable size.
Heptagonal Prism 3x3x3A 3x3x3 in shape of the namegiving solid. None of the seven rectangular sides have an identical pattern.
Hex CubeA Mixup Cube with one middle layer deleted and transformed into a half-regular shape.
Hex ShiftFourteen gears on a hexagonal shape.
Ice-9A nine sided puzzle with 6 axes of rotation.
Icosidodecahedron Square-1Extensions were designed to give a Square-1 the shape of the icosidodecahedron which is a archimedean solid.
IcosidodecaminxA Pyraminx Crystal transformation by Tony Fisher. The name pretty much describes it's complexity.