Two of the worst habits to pick up from bad advertising are these two types of pun: the rhyming pun, where one word is replaced by a rhyming word (to pee or not to pee, hippy birthday) and the sound-alike, where one word is replaced by a word that sounds phonetically the same (Czech it out, bored of education…).
These bad puns are largely considered to be the lowest form of advertising.
Advertising Concept Book (Second Edition) by Pete Barry