Ideas for bondage sex

My wife loves to tie me down and use the strapon on me (Of course I do too)

We are not in to this calling each other slave / master thing, its purely tied up with some teasing, whipping, nipple clamps and strapon but we need some more exciting positions I can be tied up in to then allow one or more of the listed actions to be done.

We both want to try some new positions to tie me up in and im looking for suggestions.

Thanks.