I've got a similar one as a gift from a German LucasArts fan with a knack for designing custom big boxes (he offered one to me, since he used my restoration). I think he came up with the design first and the guy above just expanded on the idea (by, well, stealing it).
This is the one I have:
He also designed this one:
They are both empty though (and he only ever sold them at cost, not to make money off of them).
Is it presumptuous to assume that our mini-run of MI SE boxes (as seen above left) kicked off several more of these kinds of projects? At least I can't say I've seen many custom big boxes including goodies appear online before that.