I was checking out lists of surnames on the web and I came across a forum post from someone who said:
"I got married 2 weeks ago and I can't decide on a surname. My surname is Pegg and my husband's surname is Legg.
We have 4 children between us (two Pegg's and two Legg's) and because we don't want to change their names, we were thinking about hyphenating ours to Pegg-Legg. "
I don't believe a word of it but it did make me smile