In this shot Shatner with his stalactite firmly in hands listens intently to the sound of Christine's voice coming from the android Ruk. From the TOS episode "What Are Little Girls Made Of?". This shot is similar to the ones used in the actual broadcast show though this closed eyes concentrating (on what?) moment was not used for the actual episode. You would think some fun bloopers could be out there given the...uhm....shape of things.
Sherry Jackson's wonderful costume can be seen here:
And a blooper from the same show that illustrates an after filming
dance party on one of the props can be seen here: