I remember the first time I put a bell on Slavewife's collar. She got upset and said it wasn't pretty or sexy, it just made her feel like a doll I was playing with. To her credit, she figured out within seconds that that was the point.
rope bondage is a tricky D/S play ... it can be harmful but if you know your way around the rope .... you can give her a perfect combination of choking and arousal