I've modeled a headphone splitter, for use as a character... yes, a character. The female ports are the feet, the male jack is the head... and that's not a comment on sexuality either (my film school would say I'm a misogynist pig :< )
I built a skeleton, and set some Ik handles. Worked fine. I skinned it, and, well, it seems as if the feet have a funny relationship to the head, as well as the neck having a funny relationship to the head. Observe below:
A note on construction: the black plastic is 3 subdivs: a head, feet, and the cord in between, grouped together. The gold connectors, also subdivs, are each grouped to their corresponding head piece.
A note on material: A applied a black lambert shader to the male jack's two indentions, and it shows up in the viewport, but as you can see, the thing is solid gold during render. Hints?
A note on image: Left to Right
Splitter Model, Splitter Model: Head Close, Splitter Leg issue, Splitter Leg issue, Splitter Neck Issue