Nintendo either sold or gave away the label as a sticker actually at one point. One of these "stickers" pops up on ebay every once in a while. You can literally slap it on a gray cart and it is Exactly the hologram label. I would imagine, this is what that is.
EDIT:There's a thread about this somewhere in the depths of NA
Edited: 12/02/2014
at 05:19 PM
by KAMIKAWA