Quadrilla Marble Railway

At least half the fun of the Quadrilla Marble Railway ($97) is in building a creative path for your marbles to run along. Use the included design booklet, or come up with your own construction using the 97 pieces. Combine the wooden tracks, multicolored blocks, and accelerators to make the marbles twist and turn, swirl around, and drop through levels. Get as many of the 50 marbles going as fast as you can. This amazing set will captivate youngsters who love watching the marbles, and challenge older kids as they learn to build ever more complex designs. [Thanks John]