I love
Cash, mostly because it is my mother's maiden name.
My mother has five sisters and their only brother passed away before having kids, so there has been no one to pass the surname on. I have been back and forth about using it, because it DOES sound a little strange unless you know that it is a family name. It's not like I could go around constantly saying, "This is little ____
Cash and
Cash is after my mother".
To use or not to use? I'll be interested to see the responses here!