My parents asked if they could have langworth.com email addresses. Unfortunately, I really don't feel comfortable with them relying on my colo because it's something that I muck with from time to time. I'm all set on screwing up my email and domains, but not theirs.
The solution: I bought langworth.name via Godaddy.com and pointed the DNS at Zoneedit.com which provides free URL and Email redirection. They now have langworth.* email that doesn't touch my colo at all.