This one is making the rounds on the Internet currently and I'm having trouble finding any reliable source. Most people seem to be citing the following unsourced tumblr post: http://early-onset-of-night.tumblr.com/post/13348728615/tattoo-artist-ryan-fitzgerald-from-dayton-oh-was
Tattoo artist Ryan Fitzgerald from Dayton, OH was hit with a $100,000 lawsuit last week by his ex-girlfriend Rossie Brovent. She claims that her boyfriend was supposed to tattoo a scene from Narnia on her back but instead tattooed an image of a pile of excrement with flies buzzing around it.
I've found one post that uses that image from as early as 2009-12-16 (not that it shows much of anything, but might be helpful) http://titam.hautetfort.com/archive/2009/12/17/le-tatouage-odorant-du-jour.html, the image is also all over image blogspam since that date.