Mastermind Toys Promo Codes
There's a low chance you'll find a working Mastermind Toys promo code right now. On this page you'll find all 30 codes ranked by what's worked at checkout. The best one to try is R67MFPTC, though nothing's a sure thing.
How often Mastermind Toys codes work
Each bar is one week of real shopper results: the greener the bar, the better the chance a code worked that week. Paler bars carry limited data.
| Discount | Last used | Performance | Promo code |
|---|---|---|---|
| 10% off LEGO (Members Only) | — | — | GRANDBTSLEGO |
| 20% off select items for members only | — | — | GRANDBTS |
| 10% off Clearance Items | — | — | EDUCLEARANCE10 |
| 30% off select items | — | — | WB30NKFD37CQ |
| 25% off | — | — | BMSMPERKS25 |
| 20% off | — | — | GRANDSUMMERFUN |
| 10% off select items, including LEGO | — | — | GRANDSUMMERFUNLEGO |
| 20% off storewide | — | — | GRANDADVENTURE |
| 10% off LEGOSets | — | — | GRANDADVENTURELEGO |
| 20% off Select Items | — | — | GRANDEXPLORER |
| 10% off LEGOSETS | — | — | GRANDEXPLORERLEGO |
| 20% off select items | — | — | GRANDEASTER |
| 10% off Lego Sets | — | — | GRANDEASTERLEGO |
| 15% off, minimum order of $125 | — | — | BUYMORESAVEMORE15 |
| 20% off Full Price Products | — | — | GRANDNEWYEAR |
| 20% off storewide | 10d ago | WELCOMEN2PXLQK4 | |
| 20% off | 8w ago | 2025GIFTING20 | |
| 25% off Select Items | 10d ago | 2025GIFTING25 | |
| 30% off | 5w ago | BMSMPERKS30 | |
| 20% off select items | 8w ago | EDUDOUBLE20 | |
| 15% off when you spend $100+ | — | — | EARLYSAVE15 |
| 15% off with $100 spend | — | — | 2025GIFTING15 |
| 30% off orders of $50+ Free Shipping | — | — | WB309M99J9ZJ |
| 20% off, $100 or more | — | — | BMSMPERKS20 |
| 30% off purchases of $50 or more | — | — | WB30XH868K8H |
| Free Shipping all long weekend | — | — | MAYSHIP |
| 50% off Create Your Own Castle Activity Set | — | — | PERKSEXCLUSIVECASTLE |
| 30% off orders of $50+ | Free Shipping | — | — | WB308TG8S8QN |
| 30% off purchases of $50 or more. Free Shipping | — | — | WB30KV79SHS7 |
About this page
Introducing a more honest way to find coupon codes
Every code has a history, and we track it
Codes fail for boring reasons: they expire, they only cover one category, they only apply to a first order. Calling any of them "verified" would be a guess dressed up as a fact. We publish the chance instead, built from checkout data and shopper answers, and we track it over time.
Likely not workingMixed resultsHigh chance of working
You'll find one of these charts on every code we list, tracking how it has performed over time.
When there is nothing worth trying, we say so
When we don't think there is a working code for a store, we say so right at the top of the page, before you spend time scrolling.
Good chance right now78%
Nothing likely right now9%
A code that works at breakfast can be dead by lunch. Nobody can promise otherwise, so we don't stamp anything here as "working" or "verified". We tell you the chance of a code working instead, based on real shopper feedback and data, and when the chance is poor we say that out loud.
