A reader from Russia sent me few pictures of his home made 3D rig which consists of two Nikon 1 J1 cameras. This is the video shot with that setup (need 3D glasses for full effect):
Here is another picture of the 3D rig:
Flashback: check out also this Nikon FM10 RBT 3D X5 camera and this Nikon D90 3D setup.