I haven't found it on the carnival site but it did exist. You have to have a group of 30+ . Everyone in the group has to be legal drinking age 21+. The last time I saw the package cost around $275 per person. It can be more or less depending on the length of the cruise. The only way you can get this is if everyone in the group pays for it.
Life is too short to let the ship of your dreams sail without you.
Carnival Destiny Feb. 2006
Carnival Fascination Feb. 2007
Royal Caribbean Grandeur of the Seas Feb. 2008 The DTW & MsBJ tour
Carnival Valor MsBJ and Dina Feb. 2009
Carnival Glory MsBJ and Dina Feb. 2010
Carnival Dream MsBJ and Dina Feb. 2011