Favorite Fetish or Instrument?

As doctor: urethral sounding on a male patient and vaginal/rectal speculum on a female patient.

As patient: the electric stimulation with a rectally placed electrode and an urethral probe.

Long Ridge anal scope ..AKA THE SILVER STALIN THE LONGER THE BETTER !!

If I have to pick just one it's gotta be a classic glass rectal thermometer with a red tip and a pear shaped bulb…preferably protruding from between a set of round cheeks. Incomparable!!

@cal1082 where do you like them the most?

Like different kinds but especially gyno and rectal instruments and prop/equipment like gyn chairs, speculums, proctoscopes, anoscopes, speculum etc…

Temperature taking stething