Not much. There are many couplets in Wang Xizhi's calligraphy collection. There are only a few wedding couplets and the number of words is limited. There are basically no whole words. You can Baidu some calligraphy websites, choose your favorite couplets and generate them yourself.
Example: (Some words are missing, so use calligraphy with other names instead, just like searching couplets casually on the Internet)