has a typo

[Ostap]

"On sunday, Queen Elizabeth will celebrate 70 years as monarch, but more than 10,000 souvenirs marking her platinum jubilee actually has a typo. It says, "Platinum Jubbly."
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Hello, the above sentence is what Jimmy Fallon said on his show. It didn't sound like a slip. What's your opinion on that? Should it be "have a typo" since the antecedent noun is in plural?

 

[Tarheel]

Yes. It should be "have" there.

 

[jutfrank]

Yes, it's a mistake. It seems to me he may have been thinking something like 'one in ten souvenirs has a typo'.