rope bondage techniques

There are many rope bondage techniques available on the internet with many different uses.

I find orgasm very difficult to reach and I generally have to have penetrative sex whilst holding a hitachi wand on my clit

I also find being bound helps me reach climax massively but rarely means I can hold the hitachi.

Does anyone know of any rope bondage techniques which would allow me to be bound and hold the hitachi? or any rope bondage that would hold the hitachi in place but allow access to my ass and cunt for my master?

I find it hard to orgasm also. I am very satisfied by bondage but I just don't cum all the time. Especially without a vibrator