Donald Duck, the Dutch Disney comics weekly, celebrated its 55th anniversary earlier (well, it’s just as good an anniversary as any, isn’t it ?). On that occasion, they actually buried the cover of their festive issue with an avalanche of older issues (al the while promoting their fancy but expensive collector’s folders). And a quite nice Droste effect, if you can spot it.
(and don’t worry, the normal back cover feature ran again the next week 😉