3D-printed joint kits remain the most divisive trend on this list. Traditionalists argue that snap-fit hardware works against the tactile, all-fabric spirit of finger puppetry, while a growing engineering-minded contingent sees it as the natural next step in articulation.
Regardless of where you land, the technical results are hard to argue with: puppets fitted with printed joints can hold a wider range of finger poses than felt or crochet alone allows.
Expect continued friction between camps at craft fairs, where printed-joint puppets are sometimes shown in a separate category from traditional handmade entries.