1. Outdoor bowling alley.
2. Give Oliver credit for that one idea he came up with.
3. Pens that have water inside them and can remotely be activated to spray water in the users face mid class.
4. Pipes that go into the ground around the city that you can talk to people in different neighborhoods (like the ones at playgrounds)
5. Smoker breath candies for non smokers that date smokers to make a point.