I needed to send a card to my son for his birthday and just couldnt send him the regular happy birthday card because we all know he's not happy right now - almost seemed cruel. I found a site online that has greeting cards for those in jail. Its
Three Squares Greetings – Greeting cards For Those Who Can’t Come Home..incarcerated they have some that seem appropriate for those in rehab as well. I received them quickly and they were good quality.