I would highly recommend the Fisher Price Roll-A-Rounds Drop n Roar Dinosaur.  It has a multitude of slides and ramps that keep the little ones interested.  The 6 balls that come with the dinosaur are clear with moving parts inside (e.g. dinosaur hatching out of an egg as the ball rolls), which fascinated my daughter. The dinosaur itself is brightly colored with various openings for dropping the balls. The lights and sounds also make this toy alot of fun.  This toy foster early fine motor skills, chiefly hand eye coordination as well as casue effect relationships (i.e. drop the ball into a hole...