This is a universally usable hook.

Besides the printed part you need a magnet.

I used a 10x10x4 mm neodym magnet. But sizes up to 14x14x4mm should fit easily.

If not resized, the slot in the part is made to fit am 4 mm thick magnet.

The thin wall of the slot is designed for a 4mm nozzle.
CARE:
The Orientation of the print should consider the way, in which the thin wall of the slot is printed.

I uses these low-priced magnets, which, in my case lift about 0,5kg:

https://amzn.to/39ayFpG

You can also fit a cycle shaped magnet with a diameter of ~10mm as long as its 4mm thick.

Anycubic

All-metal Mega

No

Yes

0.2

20%

Depending on how well you can print overhangs you might also print without support.