Nintendo recently announced that limited edition pastel pink joycons will be available at select retailers on March 22nd, 2024, dropping alongside the release of Princess Peach Showtime.
Select retailers means that these joycons will probably be available at places like Gamestop in the US, alongside the official Nintendo Store, so keep an eye out if you'd like to pick these up! Joycons typically retail for 79.99 USD, so I'd expect the price to be the same for this pastel pink set.