A rotatable magic picture ball comprises a ball assembly comprising an
upper section including four upper units and a lower section including
four lower units wherein each unit occupies one eighth of a sphere and is
rotatable, and each lower unit comprises a bottom cavity; a base assembly
comprising four sectors each occupying about a quarter of a cylinder and a
central recessed portion including two vertical sleeves and two horizontal
sleeves, each sleeve having two channels for rotatably coupling the
sectors together; eight half-circular stickers and two circular stickers
adhered to inner surfaces of the units so that the units can turn each
other; and an interior magnet on each upper unit so that two adjacent
upper units can be magnetically secured together. A variety of shapes and
colorful patterns for advertisement can be formed by the stickers having
predetermined patterns and/or the ball assembly having a predetermined
pattern.