March 10 is a big day for Nintendo. That's because it's MAR10 Day! Clever, right? In celebration of Mario, there's a variety of deals and drops on games and items related to the jumping plumber for Nintendo fans to check out. This ranges from LEGO sets to toys to games and so much more. We've included just a few of our favorite discounts from the sales below, but they only scratch the surface of what's out there right now.Retailers including Best Buy, GameStop, Target, Walmart, and of course, the Nintendo eShop are all participating in MAR10 Day with different deals. Have a look through the sales below to see what catches your eye before the discounts disappear.MAR10 Day 2025 Deals on Nintendo Switch GamesBest Buy MAR10 Day DealsSee it at Best BuyIf there are any Nintendo Switch games you've been meaning to pick up lately, now's a good time. Lots of Switch games (in both physical and digital formats) are on sale right now for MAR10 Day, including, of course, plenty of Mario games. Click on your retailer of choice to see what's discounted. Notably, Amazon must be feuding with Nintendo these days, because it usually doesn't carry first-party Switch games anymore.MAR10 Day 2025: Preorder the LEGO Mario Kart SetOut May 15LEGO Mario Kart Mario & Standard KartSee it at LEGO StoreOne of the best MAR10 Day treats today is this Mario Kart LEGO set, which is up for preorder and priced at $169.99,Mario LEGO Sets on Sale for MAR10 DayLEGO - Super Mario Piranha Plant Building Set for Adults 71426LEGO - Super Mario Goombas Playground, Super Mario Toys and Playset 71433LEGO - Super Mario Adventures with Interactive Peach Princess Toy 71441LEGO - Super Mario Bowsers Muscle Car Expansion Set 71431LEGO - Super Mario Soda Jungle Maker Set, Wiggler Toy and Mario Playset 71434LEGO - Super Mario Adventures with Interactive Luigi Toy, Nintendo Gift 71440LEGO - Super Mario Battle with Roy at Peachs Castle Playset and Mario Toy 71435Outside of the preorder above for the brand new Mario Kart LEGO set, there are plenty more great Mario LEGO set deals happening today. We've included some of the best options from Best Buy's sale above, including the LEGO Piranha Plant and Bowsers Muscle Car Expansion Set.Mario Plush Toys on Sale for MAR10 DayClub Mocchi- Mocchi- Nintendo Super Mario Plush - Mushroom PlushieClub Mocchi Mocchi Mario Kart Plushies - Spiny Shell PlushieTomy Nuiguru Knit Kirby Plush - Sleeping Kirby PlushieClub Mocchi- Mocchi- Nintendo Super Mario Plush - 1Up Mushroom PlushieThere's also an adorable selection of plush toys discounted for MAR10 Day, including a red mushroom plushie and a ridiculously cute knit Kirby plushie. If you've been looking to pick up sweet stuffed toys for your collectible collection, or to snuggle, these are absolutely worth a look today.If you're on the hunt for more Switch deals, it's worth checking out our dedicated roundup of the best Nintendo Switch deals. This features some exciting discounts on everything from games to hardware to accessories so you can save on a variety of items for your preferred platform. Or, if you'd like to see what deals are happening on other consoles, check out our breakdowns of the best PlayStation deals and the best Xbox deals.Hannah Hoolihan is a freelancer who writes with the guides and commerce teams here at IGN.