I know you can get them at "The Hockey Lodge" which is the Wild's team store in the X. But ya, it doesn't appear you can get them online from shop.nhl.
I think your best bet may be to contact The Hockey Lodge and see if you could have one shipped out to you. Here's the link from wild.com. There's a phone number and an email (firstname.lastname@example.org) there.
After Meaningless Win - 3/29/12 - Game 77 | SoH-"Who knows, that could have cost us a Cup tonight." | Dooohkay