Add a sharp sense of humour to your space with this “Warning: No Stupid People” cast iron sign. With its clean white background and bold black lettering, it delivers a clear message with a touch of sarcasm — ideal for those who appreciate straight talk and a good laugh.
Crafted from solid cast iron, this sign is durable and perfect for both indoor and outdoor settings like offices, workshops, garages, or man caves. It’s a great conversation starter and a fun gift for someone who’s seen it all and doesn’t suffer fools gladly.






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