From celeb-inspired looks to spooky getups, see the costumes PEOPLE.com readers shared with us on Twitter!
Credit: Courtesy Katie Silva
Updated: Thursday Oct 29, 2009 | 06:00 AM EDT
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"Our rehearsal dinner was on Halloween, so we all went in costume," says Katiesilviasd, who dressed up as Björk. Her now-husband was Cookie Monster!
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