Charlotte Donnelly, 29, found the small American-style glasses were buried deep in hundreds of polystyrene kernels and reams of shredded cardboard.
The five glasses, which came wrapped up together in their own level of protective bubble wrap, were ordered from the a UK website.
They measured just five and a half inches - but the delivery box was 14 and a half inches square.
Miss Donnelly, who is marrying fiancé Alex Owen in July, said: “I had originally ordered 100 shot glasses as wedding favours for the guests but then, as the guest list started to change, I realised I would need about five more.
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“When the five glasses were delivered, I was amazed at how big the box was and initially thought they had got the order wrong.
“More concerning was when I reached inside to try to find the glasses and couldn’t feel for the package at all.”
Miss Donnelly added: “The shot glasses are wonderful and have been made just the way I wanted them.
“But the packaging was just wasteful and quite over the top.
“And it did give me a bit of unnecessary wedding panic when I thought they weren’t actually in the box.”