3d package is a 3d-box graphic generator. 3d package lets you instantly create 3d-box images online for free. Just upload pictures for cover and sides and then get 3d-box in you favorite image format (JPG, GIF, PNG supported). You can use it anywhere you like, I think it would be useful when you would like a 3d-box image for your web applications.
P.S. You can also create CD-box and DVD-box easily as well.