Sold all over the world but banned in the US in 1997 under a law passed in 1938. Kinder Surprise are now under attack in Germany. No magicodes for you!
This [very slow loading, but persevere, it's worth it] website "probably" contains the biggest digital image in the world. Some details are here.
Ahmad Nadalian's work can be found all over the world. He is an artist that carves symbols on rocks and then leaves them at the site where they were created (sometimes burying them).