We got an email from Aunt Paula - there is an Office Depot website where you can upload photos of yourself (and 3 more people) - and you become a singing elf group. You can even call a toll-free number and record a greeting. The message is available within seconds of hanging up the phone.
http://www.elfyourself.com/?id=9582111846
http://www.elfyourself.com/?id=9586601784