This is a remix by https://www.thingiverse.com/thing:1263903 where I used his full body model and cut it myself using Meshmixer to get a nice fluffy looking head for Chewie. I didn't like the shoulders being cut off so I added my take by sculpting Chewie's shoulder with Blender. This model uses levelling springs from my ender 3 pro printer since those were the only extra springs that I had lying around. A rough estimate of the spring would be 7.5mm x 7.5mm x 20mm. It bobbles nicely but does require a little extra push since it uses springs for leveling. I had to make a name plate for Chewie since I kept pushing it off while bobbling the head. Anything for the Wookie!

References:
I mainly referenced https://www.thingiverse.com/thing:1592634 for this remix. I also used his bowcaster.stl for my pictures.

Tips on printing:
The ChewbaccaShoulders.stl is currently not flat. I recommend printing it at about -.3 for the Z position to make the bottom flat.
I recommend printing the Chewbacca_connector.stl with brim and 100% infill. This kind of doesn't matter much since the springs I used are pretty durable and keeps the head in a fixed position. Also keep note that my pole broke and my Chewie bobble head still works, so this part doesn't necessarily matter much if you're using the same springs.
I recommend printing the chewbaccaBody.stl upside down and chewbaccaHead with suppports.