Found something that might interest you.
LINK:
http://www.thecoverproject.net/view.php?cover_id=6034
DETAILS:
Cover Details:
Description: Custom Cover
Format: NTSC
Created by: Shenske
Region: United States
Case Type: DVD Case - Standard
This cover has been downloaded 4589 times
COMMENT:
Its a cover for the game; instead of that flimsy paper disk protecter. Just download this, take out the Red Steel cover ( or any other hated wii game) and place the Link's Crossbow traning cover instead. Or you can use a dvd case like rickthestick2 mentioned below. Now you have a attractive cover to go with your game.
Its free, so dont complain if you dont want it.
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EDIT:There is also a Wii Sports case cover art link, curtousy of radioioRobert
http://www.thecoverproject.net/view.php?cover_id=5369( If by some chance you dont like this one, there are other styles to chose from)http://store.nintendo.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10001&storeId=10001&langId=-1¤cy=USD&ignoreCrumbs=N&crumb1=&crumb1Ignore=&crumb2=%253CA%2BHREF%253D%2522javascript%253APassOn%2528%2527X%2527%252C%2B%2527ChooseView%2527%252C%2527%2527%252C%2B%2527%2527%2529%253B%2522%253EWii%253C%252FA%253E&crumb2Ignore=&crumb3=%253CA%2BHREF%253D%2522javascript%253APassOn%2528%2527C%2527%252C%2B%2527CategoryDisplay%2527%252C%252762707%2527%252C%2B%2527N%2527%2529%253B%2522%253EParts%2B%2526%2BAccessories%253C%252FA%253E&crumb3Ignore=&translateFrom=%C8%C9%C7&translateTo=EEC&usrSearchText=&searchText=&selSrchType=&page=&view=&productId=116705&categoryId=62707&lastAction=ProductDisplay&orderTotal=null&tranId=0&prevTranId=&jktranid=
And a Wii games case, this will cost some monnies, curtousy of GooseGaws