In the novel Oryx and Crake, what are the importance of fridge magnets?

“You could tell a lot about a person from their fridge magnets,
not that he’d thought much about them at the time," says Jimmy towards the end of the novel as he
comments on the fridge magnets that Crake ironically chose and enjoyed. We are presented with a
world which has been devastated by a killer virus, and language, in all of its senses has been
spliced just like the Crakers. Jimmy desperately and perhaps vainly tries to cling on to words
that are now redundant. Snowman is a classic example. Jimmy says to himself "Hang on to the
words" as if there is some form of liberation in remembering words that possibly no one else on
earth has ever come across. Crake's fridge magnets, however, undercut this view by presenting us
with the way that scientific advances have affected and impacted even the purity of language.
Note the irony in "Little spoat/gider, who made thee?" The deilberate misquote from Blake is
updated to include the rampant splicing and mixing of genes. In spite of Jimmy's best efforts,
not even Blake is sacred.