thingiverse
I would recommend the L3 because it is a good size to swing back and forth without it hitting your hand.
This is a toy that you can bend very easily in one axis. If you swing it back and forth quickly, it makes a nice clicking sound. After you print it, the toy will be stiff, and you have to snap it, so it can start moving.
The L_ represents the amount of hinges it has. L1 would be the smallest, and L7 would be the biggest.
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.