Readers of this website know my youngest grandchild, just over 12 months, loves to make things spin. The Fat Brain Toys SpinAgain Kids Stacking Toy ($29.99) is, accordingly, one of his favorite toys, and offers a very different experience than his other favorite spinner toy. This one has chunky gears of different sizes that spin when placed on a center post. They make a satisfying sound, and really spin fast! Lift the pole from its base and the gears all spin off onto the ground, ready to be spun again. Proof that a toy doesn't need batteries to be compelling. Marked 12 to 60 months.