Interesting post about products that display an image of themselves on their label. Not very many do this, it appears. But it even has a name: The Droste effect, for Droste cocoa (I actually have a box of this!).
I love this comment: "The worst kind of Droste effect is in Halloween costumes. I was Darth Vader one year and that costume had a fairly decent mask, a light saber, and a cape, but the costume itself featured an illustration of Darth Vader holding a light saber. Since when does Darth Vader have a picture of himself on his own chest? I thought that was stupid when I was 9 and I haven't changed my mind."