dummy model, mannequin, puppet 20cm

model dummy, puppet with movable parts, consists of 7 different, 17 components
total height standing ~20cm
easy to print - without support, only brim is needed
only the shoulder joints are fixed with M3 screws - everything else is clicked together
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update
if you don't want to print the ball for the head with the torso, you can print the torso_screwed file. add a shoulder and you're done.