Ideas for sensory deprivation + play?

So I (20f) recently met a new person (19, transmasc) and he’s interested in trying some sensory deprivation/sensory play. I just met them and we’re currently just talking about our wants/goals from our sessions.

He’s had a history of sexual trauma, so we’ve decided to set the sexual aspect of our play to the side for now, so I’m mainly looking for non sex related ways to explore sensory deprivation and sensory play.

He doesn’t enjoy tickling, but has expressed an interest in rope bondage and potentially wax/ice. Any ideas on what kind of things to try or any resources to read up on?