I have created a model that addresses the shortcomings of the original KeyboaStick. This model requires no adhesive, is more robust, and keeps its components securely connected even when detached from the keyboard.
It offers models for both numeric key and WASD key layouts, and is compatible even with 65% keyboards where other keys are clustered around the arrow keys.
To avoid the "thieves" found on MakerWorld, I uploaded this model to Thangs instead.