1. find some cool Spy vs. Spy imagery on the net
2. print out invitation in a secret code (with decoder) and enclose in mini manila folder and sealed in "top secret" envelopes.
3. create id tags with space for fingerprints for spy kid party guests
4. come up with a secret code scavenger hunt
5. think of some other spy-like games (suggestions welcome)
6. fingerprint cupcake toppers
That's it so far. I will post as things start coming together.