Magnetix I-Coaster - $59.99 - Building Sets, Blocks & Models - Fun Plush Toys.com

All of my family loved this toy. It involves a lot of real roller coaster physics. It can be a little frustrating at first because the ball flies off the track unless you get the angles correct. But after you get the hang of it, this toy is really fun for pretty much all ages. Do not buy this for impatient kids; they will get frustrated. The music feature is really nice. As well as continuous music, it has two gates that play selected music when a ball goes through them. There are quite a few selections for both kinds of music. The hyper stunts are very cool, too: a trampoline, a magnet that flips the ball around the outside of the track and onto a piece of track directly below it, a magnetic bar that carries the ball across the "ravine" to the other side, a circular piece of track that changes the ball's direction by 90 degrees (horizontally), a roller coaster loop, and a ###### piece of track for downward slopes (though that one is not particularly cool). 6 year olds should have adult/older brother help when building this toy. Pretty much all smart kids of 7+ can do this on their own. This toy takes a lot of trial and error, but is very rewarding when finished.