Yes, that's a "Top Secret" box you see welcoming guests to this "InSPYered" spy-themed birthday party. We love this for all ages -- it's more "Spy Kids" for a children's birthday, or a bit more "007" for an adult party. Black and White Chevron fabric makes great runners for the food and dining tables with all black candles, candle holders, and white or glass platters for the snacks.
The same Black and White Chevron wrapping paper was spray-mounted on foam boards to create a back drop, with pops of red throughout the room. I love the red and black paper lanterns hanging from the ceiling (pretty inexpensive at save-on-crafts.com).
Encourage guests to 007-themselves out in attire to keep the theme throughout the party!