LEGO Super Mario Piranha Plant drops to $37.79, with July 31 retirement looming

Amazon is slashing one of the most niche-but-fun LEGO Super Mario display pieces right now: the LEGO Super Mario Piranha Plant 71426 is at $37.79 with free shipping for Prime Day. IGN also notes this reflects a price match of Target’s deal that kicked off over the weekend, plus a 37% off instant discount.

The other shoe drops fast: Brick Fanatics reports this set will retire on July 31, and that same report groups it with several other Mario sets. LEGO has not officially confirmed the discontinuation, but when a product is rumored to be exiting the shelf on a specific date, price behavior starts to matter as much as the build itself.

So what are you actually buying at $37.79? This Piranha Plant stands about 9 inches high, 4.5 inches wide, and 6.5 inches deep, and it’s built from 540 bricks. IGN highlights that it is sized roughly like a potted plant, which is part of why it works as a display piece instead of just a temporary build. It also has a lot going on for a smallish brick count, because it’s designed with articulation at the head, mouth, stalk, and each of its leaves. Even the jaw is hinged, so you can pose it in different “chomp” or mid-attack looks.

There’s also a small “Mario universe” detail embedded in the build. IGN describes a piggy bank built into the pipe, plus two golden coins included to get you started on a stash. That matters for buyer intent because it turns the model into more than a static collectible. It becomes a functional-looking prop, which is the kind of thing that typically boosts demand among gift buyers and display fans.

But the set is not for everyone. IGN explicitly calls out that it is intended for ages 18+, so novice builders may need guidance even if the final result looks approachable. The upside is that for experienced builders, the articulation points and hinged jaw create a lot of pose variety without requiring a huge model footprint.

From a market perspective, the two signals here are the discount and the retirement window. The discount is concrete: $37.79, free shipping, 37% off. The retirement date is reported, not confirmed: July 31, according to Brick Fanatics and framed as unconfirmed by LEGO. In consumer goods and collectibles, those two variables often interact. When shoppers think a set is approaching discontinuation, they tend to pull forward purchases, especially if the price is already at a floor. That can turn a normal promotional deal into a “last-chance” event, where the remaining inventory moves faster than retailers would expect.

For decision-makers watching patterns in the hobby ecosystem, this is also a useful reminder about how product life cycles show up online. LEGO may not announce retirements publicly at the same time as retailers and deal sites react. Instead, signals circulate through third-party tracking and community-anchored databases like Brick Fanatics. For executives and board-level folks evaluating demand durability, that means market visibility can lag formal confirmation, while customer behavior responds immediately to the rumor level. When those signals are tied to a specific date, conversion can spike in the final weeks.

If you are an operator in adjacent categories, the second-order effect is straightforward: time-boxed promotions combined with retirement narratives can change not just sales volume, but customer expectations for future pricing and availability. A deal that appears to be a “price match of Target’s deal” also highlights competitive retail behavior. It suggests buyers can find momentum across multiple storefronts rather than being locked into one retailer’s pricing strategy, which can pressure margins and force faster replenishment or inventory re-evaluation on the retail side.

Finally, there is the content layer. IGN includes a builder review from Kevin Wong, who built the set for IGN and wrote that the Piranha Plant is “just about perfect,” calling out vibrant colors, good proportions and size, and “signature Mario franchise whimsy.” IGN’s take frames the set as cute but not too cute, menacing but not too menacing, and full of personality. That kind of positioning tends to expand the buyer pool beyond hardcore fans, which can matter when discontinuation risk enters the picture.

In short: Amazon’s $37.79 deal is real, and the details are tight. The reported July 31 retirement is the variable. If Brick Fanatics is right, this is the rare intersection of “nice enough to enjoy” and “priced like it might not stick around,” which is exactly the combo that can define the next wave of demand for Mario-themed LEGO displays.