Guided relaxation audios. I also like the Infinite Relaxation app on iPhone.

I don't have any experience with surgery so I don't have any experience with this, but it looks interesting:
http://www.amazon.com/s/ref=nb_sb_no...ery%20hypnosis
https://www.google.com/search?q=pre-surgery+hypnosis

ear buds

penetrex

electric toothbrush