I have been looking for something like this, quick and simple. So had to design own model

It has 0.9 mm walls, could be printed 0.4 or 0.8 nozzle

Print Settings

Printer Brand:

Creality

Printer:

Rafts:

Doesn't Matter

Supports:

Resolution:

0.3

Infill:

Category: 3D Printer Accessories