Jokes My Neighbor's Eight Year-Old Has Told Me

 What's large and grey and puts out forest fires?
Smokey the Elephant

 What's the difference between peanut butter and an elephant?
You don't know? That's the last time I ask you to make me a sandwich!

 What's the difference between snowmen and snowwomen?
Snowballs

 What do you do with a six foot kangaroo?
Make a lot of kangaroo stew

You have to laugh at kid jokes, BTW, even if they are the same kid jokes you told when you were a kid.