Board Thread:Off Topic/@comment-24236292-20160629220015/@comment-28288412-20160629223207

HazelQuill7445 wrote: Ozpin. It's a broach pin in his cravat... More ornate than simple like Q's and R's. If only Glynda and Ironwood had them as well I would have a Wizard of Oz link.

Also more likely but I think Ruby also alludes to Dorothy.