This is an insert I designed for the Unsanctioned box. This should hold all the decks double-sleeved, plus the tokens, dice it came with, and two spindown dice. I am not a skilled designer, this is more practical than pretty.
I have NOT yet printed this (stupid social distancing), but will soon.
I have the full insert, as well as two halves for smaller beds.
The author hasn't provided the model origin yet.