Secret spy messages need to be guarded from prying eyes. You can make your own invisible ink to hide your secret messages quickly and easily. Cut a lemon in half and squeeze the juice into a small cup. You'll need to use a fine-pointed paint brush to write out your secret message. For the best results, try to use recycled paper as this seems to work the best for keeping secret messages safe. When your invisible ink message has dried, write something else on the paper so no one will suspect ...
Pretend secret agent spy kit for kids on sale. Love that it's wood, not plastic.
Spy Mission: Use neon yarn to create a spy movie “laser field” leading to a Spy Gear Spy Cam. Start by placing the “top secret” gift near the tree. Then string neon yarn across the room and attach to the walls to create a laser field similar to the ones in spy movies. Finally, send the kids on a Christmas morning spy mission to get their gift without tripping the lasers.