There are several companies that sell these, a few that I know of

Uppercase Living
Wonderful Graffiti
Written Decor

I have also seen a few sellers on ebay.

HTH,
Sharon

I ordered from DIY lettering. The website isn't as sophisticated as some of the others but he gives good service and the prices are very reasonable.

I ordered "It will all come out in the wash." for my laundry room. Once I get a new light fixture in there, I'll post a pic of the finished project.

Here is a link that might be useful: Do it yourself lettering

Here's a link for the OP with a bunch of "family" quotes on vinyl wall lettering
http://www.quotethewalls.com/store/WsDefault.asp?One=192

I've seen a "family" quote at Target on an end cap with their picture frames. Hope you found what you need!