This is an Easter Island Moai statue bobble head toy. This toy uses a 3D printed base and spring and has a recess in the base that will hold a 10mm magnet.

The Moai should be printed upside down, supports are not needed and you can use minimal infill (10% is fine).

A tool to install the longer spring in the Moai body is included here. It is unique to this toy/spring and its use is recommended, but not required.

This is based on two prints. First, the excellent Moai print designed by cerberus333 (https://www.thingiverse.com/thing:1559944).
The second print is from the bobble head prints designed by 3d-printy (https://www.thingiverse.com/thing:5409630) that supplied the base and spring mechanism.

See the complete collection of my 3D print creations on Printables.com at: https://www.printables.com/social/258622-rreibel/models

Enjoy!

Updated July 28, 2022: Completely new version uploaded with much improved lower center of gravity, new spring and spring installation tool.