Sideshow Collectibles has come out with a 19-inch polystone Arthas statue for your enjoyment. It's hand-painted, frosted, and has a glacier-like bottom. This is limited edition and you can pre-order one at this website -- for a whopping $350!
The estimated arrival date is October 2012, so you have time to save up some money. $35 is required up front for the pre-order and is not refundable. As an added bonus, they also made an exclusive desktop wallpaper downloadable at this link.