Abstract: An apparatus and a method of producing a decorative image are provided. The apparatus may include a rotatable platform, an upstanding wall extending around a perimeter of the platform, and an illumination source configured to illuminate the platform. The platform may secure an activity surface, and a motor may be coupled to the platform to rotate the platform. The illumination source may be an ultraviolet illumination source, may emit intermittent illumination, and may be part of a stroboscopic illumination device. A controller may be operatively coupled to the illumination source, and may cause the illumination source to illuminate the rotatable platform at a first strobe rate and at a second strobe rate. The controller may also cause the motor to rotate the platform. The method may include rotating a surface, receiving decorations on the rotating surface, and illuminating the rotating surface with a stroboscopic illumination device.

Abstract: A toy block includes a base assembly and a rack slidably attached to the base assembly. The rack, which defines a longitudinal axis, includes a first row of teeth and a second row of teeth, each of which extends in a direction generally parallel to the longitudinal axis. The rows of teeth are oriented such that interaction between the first row of teeth and a first rotating member causes the first rotating member to rotate about an axis that is not parallel to an axis about which a second rotating member rotates when interacting with the second row of teeth.