I remixed this old fantastic falcon model from 2013, "thing:46631" and adapted it with pockets for magnets and modified back surface.

Pockets for magnets fits magnets that are less than 12.5mm in diameter & 3.5mm high.
Pause the print at desired height and drop your magnets in the hole with a drop of glue underneath, so it doesent rattle. Continue printing...

Requires only little support if the model is printed lying on its back.