Box Card invitations from Los Angeles-based Spitfire Girl are sure to make a guest list grow. Each three-dimensional invitation consists of a U.S. Postal Service-approved cardboard box — printed with occasion-related graphics — along with a mailing sleeve and address label. Inside, a label under the lid tells attendees the essential what, when and where of the event, while kitschy trinkets and toys hint at the fun to come. The Fiesta invitations open to reveal a mini plastic blender and margarita glass; the Bowling invites contain a bowling pin candle. Customized labels and invitations can also be created. For more information call 323/223-3520 or visit www.spitfiregirl.com.