The Henna Tracer Tattoo was seen in "Freaky Circus Much?". Before departing for their mission; Sam, Alex and Clover each received a tattoo on their right arm with Jerry revealing that the tracer tattoo contained a tracking device in it.
When Alex and Clover were kidnapped after being turned into freaks by a DNA altering mirror, Sam used the tattoos to find their location and help her colleagues stop the Ringmaster.
- Black Dragon/Snake -- Alex
- Purple Flower/Butterfly -- Sam
- Red Rose -- Clover
- While receiving the tattoo, Clover tells Jerry that henna arm tattoos were quote "so last millennium". In response Jerry says that he will make a note of that.