Then again if you are the perverted ....errr.... enlightened type that has a thing for rope, you could make a rope collar....

check out this clip from the knotty boys....http://www.youtube.com/watch?v=DaQXO3I_OQg

I am working on making it smooth and symmetrical, then I think I may make a few so she can have one that coordinates with whatever we dress her in for the next play party.