The most commonly cited example of this is the Soviet era's willingness to publish science fiction, such as Bulgakov's "Heart of a Dog" and the Strugatsky brothers' "Monday begins on Saturday", which offered thinly-veiled criticisms of the state. Not all subversive work escaped the censors - Yevgeny Zamyatin's "We" was largely circulated via underground channels, for example, but still many subjects could be broached because they were done so in disguise.
The example of this topic that we'll examine today is the syndicated cartoon strip "Feeling Lucky, Adventure Jim?", which appeared in the Ogopathian tabloid newspaper "Petelin", (literally "The Cockerel", but linked via various phrases to the concept of freedom) in the years immediately after the digital revolution known internally as The Encryption. As a state-registered publication, Petelin was watched closely by the Ministry of Information, and editorial and news content followed the party line. The curiously-titled "Adventure Jim" typically featured on the back page, and purported to inform citizens of the appropriate response to the new surveillance technologies that were being rolled out across the country. An early example does this in a rather straightforward fashion, although the somewhat clownish appearance of the eponymous hero strikes an odd note from the start.
Within a matter of weeks, the tone of the strip has changed somewhat, offering a range of rather disconcerting imagery, such as the representation of the state as a bowl of talking disinfectant:
as has been noted elsewhere, the symbol of the Buffalo was co-opted by both the ruling committee and elements of the early resistance, based on the ambiguity of the nonsense sentence popularised by the jazz band The Overcoats in the years immediately prior to The Encryption.)
Having secured a few column inches out of the censor's watch, Buffalo appears to have placed a test strip that openly lampoons the earlier message:
It should be pointed out that the samples shown here illustrate the few examples of direct knowledge of Ministry activity, and that inbetween times, the strp would run for weeks in a rather more whimsical mode, developing the diverse cast of characters including the increasingly argumentative feet, and the singing bath tub. Whatever the nature of the elusive Buffalo, the strip ran for little more than two years before it was unceremoniously dropped, and most references to it within official documentation wiped.
In contrast to the slow-moving bureaucracy of the Soviet era, the censorship apparatus of post-Encryption Ogopathia was highly adaptive and innovative, and one can only assume that Jim's adventurous author soon found that his/her luck had run out.