To promote the Splatoon x Pokémon Splatfest, My Nintendo Rewards is offering a November 2022 Wallpaper and Keychains which can be redeemed with points. The wallpaper cost 50 points and the keychains cost 550 points.

November Calendar: Splatoon™ x Pokémon™ Splatfest

Reward available until: 11/30/2022 at 6 PM EST
Redeemable: 1 time
A wallpaper for your PC, smartphone and tablet.

The wallpaper can be downloaded in five different resolutions.
Landscape format: 1920x1080
Portrait format: 1080x1920・1200x1920・1242x2688・1536x2048

Splatoon x Pokémon Splatfest

When choosing your partner Pokémon™, which type would you choose: Grass-type, Fire-type, or Water-type? Yep, it’s true—the next Splatfest in the Splatoon™ 3 game is going to be a Splatoon x Pokémon collaboration! Splatfests are special, limited-time events in Splatoon 3 where players team up to champion one of three causes. After you make your choice, you’ll participate in Splatfest Battles, where the goal is to ink as much of the stage as you can without getting splatted too often. At the end of the event, the winning side will be revealed, and in-game goodies will be handed out (with the winning side getting more, of course).

The Splatfest will take place from Friday, Nov. 11 at 4 p.m. to Sunday, Nov. 13 at 4 p.m. PT.

My Nintendo Rewards - Splatoon x Pokémon Splatfest November Calendar and Keychains

Gotta Splat ’Em All – Looking forward to the upcoming Splatoon x Pokémon Splatfest** taking place from Friday, Nov. 11 at 4 p.m. PT to Sunday, Nov. 13 at 4 p.m. PT? Show some flair for your partner Pokémon team of choice with a Splatoon x Pokémon Splatfest Keychain set reward … coming soon! In the meantime, count down the days until the Splatoon 3 Splatfest and the release of the Pokémon Scarlet and Pokémon Violet games with the November wallpaper calendar reward.

Sources: https://www.nintendo.com/en-us/store/products/hrdg-keychain-set-spltn-3-mnr-st3/, https://my.nintendo.com/rewards/f298baacd71370e9 and https://twitter.com/SplatoonJP/status/1582541428881731585