The standalone Neon Pink and Neon Green Joy-Con is now available on Amazon. If you are interested, you can preorder the controllers with this link from the shopping website. You can also check out what the package looks like with the image located just below this paragraph.
The Neon Pink and Neon Green Joy-Con were previously exclusive to the Splatoon 2 Nintendo Switch system bundle. You can check out Amazon’s description of the new product below:
Introducing Joy-Con, Controllers that make new kinds of gaming possible, for use with the Nintendo Switch system. The versatile Joy-Con offer multiple surprising new ways for players to have fun. Two Joy-Con can be used independently in each hand, or together as One game Controller when attached to the Joy-Con grip. They can also attach to the main Console for use in handheld mode, or be shared with friends to enjoy two-player action in supported games.
Each Joy-Con has a full set of buttons and can act as a standalone Controller, and each Includes an accelerometer and gyro-sensor, making independent left and right motion control possible. Includes 1 left Joy-Con, 1 right Joy-Con, and 2 Black Joy-Con wrist strap accessories.
So, if you are looking for a new Joy-Con, then you might want to check out the new Neon Pink and Neon Green color variant.