Originally posted by: redemption2MKII
Yami Bunshin no Jutsu (Dark Clone Technique)

Under the cover of darkness or smoke bombs, a ninja can project his or her image onto any small thrown object such as a rock, shuriken, or exploding kunai. This will only project an image onto the objects. A true master of the jutsu can actually ventriloquise his or her movements to the object, making the false image seem real to anyone that has eyes or ears, allowing the real one to use a sneak attack. Hand Seals unknown (too dark to see them). Disadvantage to those ninjas who use smell, such as the Inuzuka or Aburame clans.

I came up with this technique while creating my Naruto fanfic Naruto: Eyes of the Blind Maiden. I only got to use it twice before my hard drive died and the story was lost forever, incomplete, but I still remember it as plain as day.
it would also be vulnerable against doujutsu types...like neji and sasuke....since it would be a genjutsu