A few days ago I changed my pronouns (in my profile) from having no preference to "Pat, Pat".
My understanding of pronouns in the English language is that they serve as a shortened version of a specific noun -- in the case of personal pronouns, a shortened version of a person's name.
Since my name is already so short, it makes sense to just not use the pronoun at all and just refer to me as "Pat".
It may sound weird in some cases, but I think it makes sense.