Deactivate the real bomb - the dining hall could be filled with tons of black balloons with secret messages inside. The kids pop them to find a specific message. I did something like this to start Nicholas's treasure hunt (balloons were canon balls, not bombs).
Spy School Kids Activities
Spy School Activities for Kids! Everything you need to host a spy themed summer camp at home! Great ideas for birthday parties too!
White Yarn +Black Light - Could be a fun activity for the Teens Night Activity.
Create fun messages to decode with these smart DIY code breakers for kids.
Spy Week Roundup
Free printable spy folders and mission sheets for spy kits to use for the preregistration day "passports"
You loved kid spy shows and movies like 'Kim Possible', 'Spy Kids', 'Agent Cody Banks', and 'Phineas and Ferb'
You loved kid spy shows and movies like "Kim Possible", "Spy Kids", "Agent Cody Banks", and "Phineas and Ferb" | 37 Ways To Know You're A 2000's Kid
Use your detective skills to determine the candy. We played at the spy birthday party.
Fun, motivating ideas to use with the kiddos: Go on a secret spy mission
Great idea for spy kids birthday themed invitation Pinned for Kidfolio, the parenting mobile app that makes sharing a snap.