Well, although sadly Dad will not renew my subscription to Brickmaster Magazine, behind the scenes stuff would definately be awesome. Some pictures of various prototypes for different sets, little anecdotes about the pains of designing the sets, etc. would be excelent. Like that little thingiemabopper in the LoMN DVD.
And I agree with some of the other members, fan art would be awesome. Though most of the ones submitted would sadly be little scrawled Avaks getting arrested and such... *sigh* But mostly I would appreciate pics of prototype sets, that way I could steal them for MOC ideas.
Rantingfully yours,
LFZ