This is a cat treat dispenser, similar to older gumball or candy dispensers. All you need to add is any standard mason jar (not wide mouthed), which screws right in. It works well with Temptations and Greenies, both of which my cats are absolutely mad for and will likely work with just about any treat. Training your cat to actually dispense their own treats is not simple but it can be done! My boy figured it out after a few sessions, the hard part was getting him to interact with the handle.

Changes from the original files include modifying the handle to be much bigger and more cat friendly, changing out the collection cup for a steeper ramp which dispenses onto the surface below, and adding a bit of width to the entire object so it's less easily tipped.

A couple notes - the clip is a tight fit, you may need to sand it a tiny bit to get it to fit, and a smaller mason jar is ideal to avoid making it too top-heavy. It can get a little stuck sometimes which is hard to prevent , moving the handle back and forth will fix it.

This mason jar print works great if you want to print the whole thing - https://makerworld.com/en/models/211163