Marbleocity Construction Kits
Build a working desktop marble coaster out of wood! Each kit comes with dozens of pre-cut wooden pieces, metal axles, a motor, and marbles. Follow the detailed instructions to create the marble run piece-by-piece using household glue, then turn it on and watch the marbles fly. Coasters feature jumps, inclines, ramps, lifts, and more, mesmerizingly illustrating roller-coaster design and physics. Kits come with a "Tinkineer Graphic Novel" which follows a cast of characters (representing physical concepts) who help explain the scientific side of coaster-building.