Most 3d shapes.
Amongst the more "regular" shapes: sphere, ellipsoid, toroid, tetrahedron, [non right] parallelepiped, decahedron, dodecahedron, any pyramid with a base with 5 or more sides.
Totally random 3-d shapes (blobs) won't have any rectangular shapes either.
Any polyhedron.
Any shape you like.
It depends on the 3d shape.
An 8-faced 3D shape is called an octahedron. It is a polyhedron with eight triangular faces, 12 edges, and six vertices.
It is not a 3D shape.
A camera is a 3D shape. A photograph is a 2D projection of a 3D shape onto a 2D shape.
a pyramid is a 3D shape :)
what 3d shape is a tyre
is a square a 3d shape
Paper is a 3D object.
Any polyhedron.
It cannot be a polyhedron nor any "normal" 3d shape.