The big one was discontinued by the manufacturer. The only place I know of that might still have them is Nancy's Notions (
http://www.nancysnotions.com ). Do a search there on Fiskars and see if it comes up.
Edit Update: Nope. I just did a search there and the big one did not come up. They only have the smaller one (which is also available at JoAnn's and maybe Walmart, most likely for less money).