A couple of the more interesting methods include making the number into a song and displaying it with satellite photos of buildings that resemble hex digits. One individual appears to have had it tattooed on his chest.
This is exactly what we saw with DeCSS, which is memorialized in Dave Touretzky's Gallery of CSS Descramblers.
This case is even more absurd, in that AACS LA is claiming ownership of a number--and a relatively short one--not because it encodes any content or algorithm, but because it's one of potentially millions of keys assigned for use with its system.
UPDATE (May 11, 2007): As this t-shirt makes clear, trying to protect against the distribution of a 128-bit number is futile when knowledge of the number can be easily distributed without using the number itself. I'd love to see AACS LA try to make a case against the marketing and sale of this shirt.