This is a simple Zippo stand / display you can use to organize your collection.
This takes 2h30 on my Creality Ender 3 to print
The small recessment on the bottom is there to let you stick a label if they have name or something like that.
The picture shown is not the latest version which I haven't printed yet. It adds a small slope on the side where it holds it so that the printing fail you can see on it doesn't happen
I print it on the backside