I had a job interview this morning.

"Now where are my cuff links? I swear I put them in here!"

no matter, I have the power to solve this problem!

A simple square cuff-link with a circular indent in the center.

I had best luck printing as shown in the first image, including support material.
You can experiment to find what works best for you.
Included are a 5/8" and a 1/2" version, depending on the look you want.
I can be seen in the picture with the 5/8" model.

They made a great impression at the interview, and had people fascinated!