thingiverse
This is a mathematically specified ghost. By changing parameters in the customizer, you can change the shape and other properties of the model.
The default setting produces a thin-walled model which will print relatively fast. It will print without support, just make sure the first layer sticks on the build plate.
Optionally, you can instead generate a filled model. For a filled model, you can use a low infill.
Direct link to the original creator's page
Click the "View on thingiverse" button above to visit the original model page on thingiverse. You can download the STL file directly from the creator's page for free.
This STL file is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
Yes, this model is available as a free download on thingiverse. Some creators accept tips or donations.
Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer. Check the license on the original thingiverse page to see if modifications are permitted by the creator.