No PVC or Latex...but corsets and girdles
Although I haven't tried these, I do have an affinity toward corsets and girdles which provide the sensation of being bound. When I dress, I wear a waist nipper, girdle, longline bra, and all-in-ones. Sometimes, I layer all of these items and the feeling is erotic which leads to masturbation.
Upon orgasm, the combined effects is beyond description...I feel very euphoric!...a lot of relief! This may well be my brain releasing multiple endorphines and causing that narcotic feeling.
(Or it may just be dizziness caused by the lack of oxygen in the brain...that stuff is sooo tight...but I love it the same!)