Rocket launcher.

This is one of the best toys.  The boys love to get a running start (an extreme running start at times:  they get so far away from the air bag that they're too tired to jump when they finally get there) and launch that stomp rocket high into the sky.

Just don't let it land on the roof, okay boys?

Ha.

It's been on the roof plenty of times.  We just never retrieve it.  Wait long enough and the wind will naturally knock it off and we'll find it in our yard somewhere.