The more creative the language context, the more likely we are to encounter lexical experiments, and find ourselves faced with unusual neologisms. The stretching and breaking of the rules governing lexical structure, for whatever reason, is characteristic of several contexts, notably humour, theology, and informal conversation, but the most complex, intriguing and exciting instances come from the language of literature.
Pride of place for neologizing among modern authors is given to the chief oneiroparonomastician (or 'dream-pun-namer' -- the term is Anthony Burgess's), James Joyce. Joyce himself called Finnegans Wake 'the last word in stolentelling,' a remark which seems to recognize that the extraordinary lexical coinages in his novel have their roots in perfectly everyday language.
I suspect it can't be all bad for a fledgling writer to have the same linguistic urges as James Joyce.