Pizza?

"Oooh! A snowflake!" The three year old pointed to the twelve year old's t-shirt.

The 12 year old laughed. "It's not a snowflake - it's a peace sign."

The 3 year old frowned and cocked his head to the right, considering the design on his sister's shirt. "I like pizza," he said at last and, grabbing a handful of cloth from the front of the t-shirt, tried to stuff it in his mouth.