The adorable Lego Super Mario Piranha Plant is on sale for its lowest price ever at Amazon and Walmart. Normally $60, the 540-piece display model is up for grabs for only $35. Amazon's deal is available for everyone--though it certainly could sell out--but you need a Walmart+ membership to get the deal from Walmart. It's one of the marquee Lego deals in Walmart's new sale that's running alongside Prime Big Deal Days.If Walmart doesn't sell out of the deal before October 6 at 9 PM PT, then it will be available to purchase for all shoppers. But as mentioned, you can grab the deal from Amazon without a membership of any kind.The Piranha Plant has remained a consistent bestseller among Super Mario Lego sets at major retailers since its 2023 release, so this deal is unlikely to remain in stock for the duration of Walmart Deals and Prime Big Deal Days. The Piranha Plant is one of eight Lego Nintendo models geared toward adults. You can also save on two of the other sets in the lineup. Super Mario World: Mario & Yoshi, a pixel art model based on the classic Super Nintendo platformer, is on sale for $104 (was $130) at Amazon and Walmart. The other deal is a $20 discount on The Mighty Bowser. While a $20 discount may not sound like much since the 2,807-piece King Koopa building set will still cost you $250, Lego is retiring The Mighty Bowser before the end of the year. And based on the high reseller prices of the other two retired sets--Lego NES and Super Mario 64 Question Block--$250 for the largest Lego Super Mario set will probably sound quite good before long. For more Lego discounts, check out our roundup of the best Target Circle Lego deals. Just like with Walmart's Piranha Plant deal, Amazon is matching a ton of Target's Lego discounts.Lego Nintendo Building Sets for AdultsHere's a list of the Lego Nintendo display models released so far, including the new Lego Game Boy that launched at the beginning of the month.Super Mario: Piranha Plant (540 pieces) -- $35 ($60)Super Mario World: Mario & Yoshi (1,215 pieces) -- $104 ($130)The Mighty Bowser (2,807 pieces) -- $250 ($270) | Retiring soonLego Game Boy (421 pieces) -- $60Mario Kart: Mario & Standard Kart (1,972 pieces) -- $170The Legend of Zelda: The Great Deku Tree 2-in-1 (2,500 pieces) -- $300Lego Nintendo Entertainment System (2,646 pieces) -- Retired, $270 MSRPSuper Mario 64: Question Block (2,064 pieces) -- Retired, $200 MSRP