Abstract: A display device includes a decorative model for simulating a doll, people, animal and the other articles with the decorative model having a base provided with a driving device within the base, a rotary body such as a crystal ball rotatably mounted in a central or middle portion of the decorative model and driven by the driving device such as a spring or a motor and a swing device such as a pair of swinging arms of a doll or a people universally secured to the decorative model by a universal joint, having at least a coupling link slidably coupled to an endless groove recessed in a universal rail circumferentially sinuously wound on a spherical surface of the rotary body, whereby upon operation of the driving device to rotate the rotary body, the swinging arms of the swinging device will be swung along the universal rail disposed on the rotary body to produce a three-dimensional decorative effect for the decorative model.

Abstract: A display device includes a crystal ball held on a base having an upper decorative article rotatably mounted in a top plug formed on an upper portion of the crystal ball, and a lower decorative article mounted on a packing disk rotatably mounted in the base, so that both upper and lower decorative articles are rotatable either in a same direction or different directions, for enhancing decorative interest and increasing diversified features.

Abstract: A display device includes: a crystal ball fixed on a base formed with plural concave and convex portions on a spherical surface of the crystal ball to respectively form plural concave lens and convex lens on the ball surface when filled with water in the ball, thereby producing magnified and contracted images for a decorative article mounted in the ball as viewed through the concave and convex portions for enhancing decorative interest.