Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4964599.

I liked the Nux Bird by SaltMarsh, but I decided to remake the base to look closer to the one in the movie. I joined the two skull pieces to print in one piece since I have a resin printer that can print it without issue. I also scaled the skull up by 4% so that the spring can be inserted easily, but is still snug enough that you don't need glue. In hindsight, I should have left the skull the same size and just enlarged the hole.

I would recommend a higher infill on the base than the skull to make sure it isn't top heavy