Nothing is better then a box.
"Water!"
Popcorn on the cob!
"I can fit in the box!"
Big hug!
"Outside!"
"Take a picture, I got up here all by myself!"
Just sitting in a box!
"Blocks, I'm going to dump them!"
"A Box!"
"I need inside it!"
"A door!"
"I can do it all by myself!"