During my attempt to escape the darkhole called YouTube, I witnessed many devices to secure a mini to while working on it.
Being a barbarian, I just use my big mitts. The concept of a device for handling my mini during processing is wondrous but foreign.
I was most impressed by one made by Rathcore (a turned 3 part wooden pedestal with a rotating hand support, that under further investigation runs around 20€). Most people used wine or Champaign corks (material comes free with a delicious beverage).
What is your go to for working on your minis, and how does it help you?