Sentry marketing has massages. Coyle has a client that does facials but good luck being assigned it. Most of the luxury hotel assignments usually have a spa visit.
I shopped a wax business recently. I got my underarms waxed. As I was lying on the table I went from being ticklish to feeling the rrrrip of what felt like all my skin being removed (ha!) ....but all the while thrilled I was actually being paid for it all. Win-win!