How does a 4-year-old pack for vacation?

Angry-Birds-BackpackHe gets out his Angry Birds Backpack , and fills it full of stuffed Angry Birds.

Angry-BirdsWhat more could you possibly need for staying a month at grandma’s?  At least last vacation we went on he packed one outfit.  I guess he decided that clothes are overrated this time.  (And yes, I packed him a separate bag of clothes but the Angry Birds had to come to grandma’s too.)