Operation Spy Secret Marker Kit (Set of 4 - Spy Museum Exclusive)
Got the "write" stuff to be a spy? Now you can send for-your-eyes-only messages to friends and other agents with this secret marker! It will be invisible until it is scribbled over with the special developer marker, revealing the message as if by magic! A Spy Museum Exclusive!
Pickup available at 700 L'Enfant Plaza Southwest
Usually ready in 24 hours