I'm not a 3D modeller. So is hard to do something that i want. Thanks to your designs. There are few minor points to bring out, your design size doesn't fit to my region color pencil. To me i did readjust the sizes. Another part, its hard to push for kids. I design a simple puller and some modification on the bottom part. That's it.

The design very good and was looking on it for long time. While only have a problems for PS4 controller, the dual shock stick bottom not flat. So it will drop if slightly hit it. Maybe need design an external part for PS4 Controller. Over all Thumbs up. *By the way the slicing profile, on the object Strength, the sparse infill pattern need remove the lock to avoid print without top surface.*