ProPlus Armature Kit, Professional Magnet & Green Eyes
Amazon.com: Diy Studio Stop Motion Armature Kits | Metal Puppet Figure for Character Design Creation | Not-Ready Studio Armature Kits Very Easy to Assemble for Stop Motion Animation or Just Fun
Amazon.com: CineSpark DIY Studio Stop Motion Armature Kits | Metal Puppet Figure for Character Design Creation Not-Ready Very Easy to Assemble Animation or Just Fun (11cm, Standard) SMA : Toys & Games
Standard Armature Kit - A ball and socket joint stop motion armature from Animation Supplies