Flames are definately canon. Deflector dishes protruding through the face of a lead cast member are borderline I would think.
I'm not sure about the Pez dispenser. I think I saw one in "A Private Little War", but my TOS Season 2 is a little shaky.
Well, it turns out there was a PEZ dispenser gun
. It's entirely possible the landing parties were outfitted with PEZ dispensing phasers and tricorders, too.
Just something to keep in mind.