with your hand
put it on the trash can
The trash can lid will be on a ride called: Cranium Shaker.
You will find the trash can lid on the ride with the cages ;)
You're not actually supposed to take off the top. :)
click on it
It is up on one of the cars in the Cranium Shaker ride next to the Popcorn vendor.
Go to the ride by the bumper cars and climb it. Grab the trash can's lid on the top of the ride and put in on.
When you go to the ride "Cranium Shaker" (next to the popcorn stand), the lid is on one of the cars. Jump up and get it. It is used to cover the trash can at the bumper cars, which has stinging flies.
Climb up the Cranium Shaker ride and push the lid off -- your character should pick it up. Take the lid to the trash can (left) and once it is covered, you can push it to the far right of the scene. The stinging flies will go to the cotton candy and you can recover the empty popcorn box from the trash can.
You can't
its on top of the cranium shaker
get the lid from the cranium shaker put on the the trash can by the fun house. move the trash can by the cotton candy open it and the bees should go 2 the cotton candy. dig in the trash can and get the popcorn bag.