It's more of a try-out tattoo, rather than a real tattoo.
http://www.telegraaf.nl/binnenland/9...jkt_nep__.html
The article basically describes the tattooist admitting it, and other people involved with it as well. However, the tattooist would not hesitate to actually do tattoo such a thing, if the person really wants it and was 100% confident that he/she wants such a tattoo.
Now, TPain did get a real tattoo of the facebook like button... ( Linked from article
http://news.cnet.com/8301-17852_3-20030005-71.html )