Homophones are words that sound the same but have different spellings and meanings. Since "auricle" is a fairly unique word, there isn't another word that sounds exactly the same.
However, you could use "oracle" as a near-homophone. While the pronunciation isn't identical, it's very close and could be used in a humorous or creative context.
It's important to remember that using near-homophones can be tricky, as they might not always be understood by the listener. It's best to use them with caution and be sure your audience understands your intended meaning.