If you are a parent, guardian, or babysitter, you don't need expensive equipment to make this happen. You just need to set the stage. Here is how to launch the best after-school shrinking adventure:
Introduce the "Big Bad." In the shrinking adventure, the villain is often indifferent nature. The best villain is a custodial robot or a stray dog that has wandered in. It cannot be reasoned with. It is simply large and hungry.
Most importantly, he discovered the tribe.