This model is part of my “Printing with PETG on PETG (sheets)” experiments. 
To print this model, You'll need an sheet of PETG (or other, but the same material as Your Filament) to directly print on. 

I designed this to test the strength of bonding between a printed part and the PETG sheet.

How to print this, and what this is all about, please check out my blog post: https://printys.net/2024/05/04/printing-with-petg-on-petg/ 

Printed with PETG (obviously), 0.2 layerhight, 3 perimeters, gyroid infill 30%.
Don't forget to remove the protective film on the top side, before printing.

I have hung 12,5 kilos on it for over three hours, without any visible deformation.