Are there any non-flat playfields out there? I've been thinking that a curved playfield could offer some interesting shots. Something like a curved saucer area or or banked corners. Almost like a miniature skate park concept. Maybe make the playfield deeper than normal and have some ramps that you would need to hit correctly that would launch the ball up to a target that wouldn't be reachable unless the ball is airborne. It would need to be some sort of composite instead of wood I guess. Bad idea or interesting concept?