Haha I just re-read your post and cannot believe how I completely missed what you were saying
But good luck now haha, there's not a single gap between the arm and the chest, so you'll definitely need to get creative Maybe use a thin, but stiff wire as rope, then you can have it split in the middle with a gap almost the width of her arm, it'll just "snap" on and give the illusion that the rope is going under the arm.
But good luck now haha, there's not a single gap between the arm and the chest, so you'll definitely need to get creative Maybe use a thin, but stiff wire as rope, then you can have it split in the middle with a gap almost the width of her arm, it'll just "snap" on and give the illusion that the rope is going under the arm.