Modular Wobbly Cat Toy - Options for catnip or treats

This toy is a sort of modular toy with different configurations to choose from. There’s a solid middle piece with a chamber that you can put some catnip in as well as one with holes for treats to fall out with some batting effort from your cat. You could also leave it empty to use as a batting wobbly toy. See it in action here: https://youtu.be/S_YPRXXhSFQ