Make the left or right joycon controllers feel like real controller. Also makes the controller easier to handle with bigger hands, and gives them a retro feel.
Designed to take advantage of the joycons strap extensions to extend the shoulder buttons. There's place on the side to tuck the strap away, and works for both controllers.
Insert the side with the strap first. To remove the controller Simply push the controller's trigger from below the grip.
The pictures above show the working prototype printed in PLA not the final product.