Ok, every lady has her special thing or things she does and some are unique.  
I know of one thing I tried a time or two, but don't know if it's anything great, urban legend, or something you just shouldn't do. 
I have heard that vaginal linings and the nasal linings in the nose are almost identical.  So way back when I guy suggested popping in a cough drop then do DATY.  If this is true I can only imagine the sensation.
So 2 questions.  Is the cough drop trick worth doing?
Next what's the most unique thing you have done or had done to you.  This could get fun.