If you are looking for a calendar, and also want some art for your wall, consider my 2013 calendar.
It's a 12 month, January - December 2013, wall calendar. There are eleven photos of artwork I created in 2012, and one in 2011, giving you twelve months of art, one for each month. It measures 13" x 10.4", and costs $30.00 plus shipping (plus tax for Massachusetts residents). You can see bigger pictures of each month and get more info here.
There's plenty of time to order one and have it arrive for the holidays, if it's a gift for someone. Or, if it's for yourself, and you don't need it until January 1, 2013, there's even more than enough time. It'll take about a week for it to arrive at your door, depending on where you live.