Gold members get a calendar, and Platinum members can choose between the calendar or a Mario figurine.
http://www.nintendoworldreport.com/news/23592
The 2009-2010 Elite Status Rewards at Club Nintendo have been revealed to be a collectible Mario character figurine for Platinum members, and a 2011 calendar for Gold members.
The figurine consists of Mario, Luigi, Yoshi, Peach, Toad, Bowser, and a Goomba. Platinum members can also pick the calendar if they choose. Rewards will be sent to members by December 2010.
Club Nintendo members who reach certain point plateaus are eligible for rewards at the end of the Club Nintendo year (July 1 to June 30). Last year's rewards were a Punch-Out!! WiiWare title, a Mario hat, and a calendar. Unlike this year, Gold members were the only people who could get the calendar.