I'd love to dress up as Lizzie Borden for Halloween someday. I doubt I could get my boyfriend to agree to a couples' costume - he likely wouldn't enjoy being dressed as an axe murder victim all night!
There's also a plus size version of the Lizzie Borden costume.
Both costumes are also sold on eBay.
Don't forget your prop axe!
I actually prefer this one - it's bloodier!
You could even carry around a little Lizzie Borden doll for another fun prop.