We joined a friend at Disney last year. She had made the original reservation. After she added us to the reservation, she called DME and they sent additional tags for us--to her, because it was her name and address on the reservation. She then would have had to send the tags on to us, but we weren't sending our luggage through DME (late arriving flight) so I told her not to. We just checked in at the DME desk at the airport, they verified we were on a Disney reservation, and printed vouchers out for us (this was before MBs), and we boarded the bus without issue.