More to explore:
Perfect for purse when your kid needs a distraction! LEGO in a tin, with a base on top
Balloon Ping Pong = awesome!
Such a cute idea! Yarn and tape a hallway for a "laser obstacle course."
How to combat cabin-fever for the winter: Spy Training & a bunch of other ideas
kids organizational tips
Kids market created from cardboard.
Touchable Bubbles. The bubbles harden after you blow them so the kids can actually catch them.
Lots of great ideas to keep kid entertained in waiting rooms, plane rides, etc... Awesome!