In a nod to gentlemanly fashion, may we present the recently reinvigorated collar pin or collar bar. Designed to fit with our specially made collar pin shirts, they can be worn with or without the accompanying chain.
These little things are wonderful. I have worn them for 30 years and used to be so difficult to find (we only had physical shops then). My collars are always too soft (I make a lot of my shirts) and collars tend to wobble upwards and ties always seem to work loose. This little pin really pulls everything together. (PS I like to make a small hole for the pin in the collar points and just sew a little button hole round them, but that is just me).