A tip from Jeff [1] lead me to very cool Uncle Scrooge story [2] that may (or may not be) the inspiration for the movie “Inception” [3] (actual links from boingboing [4]).
I'm more familiar with the work of Carl Barks [5] than I am with Don Rosa [6] so I found the artwork a bit jarring but the story was quite imaginative (and odd to see so many Beagle Boys [7] in one story).
[1] http://spinthecat.blogspot.com/
[2] http://disneycomics.free.fr/Ducks/Rosa/show.php?num=1&loc=D2002-033&s=date
[3] http://videogum.com/208132/caught-inception-ripped-off-scrooge-mcduck/remakes-and-spinoffs/
[6] http://en.wikipedia.org/wiki/Don_Rosa