A water ball decoration includes a plug, which has an annular outer wall fitted into a lower end neck-shaped opening of a water-containing ball-shaped part, and an annular inner wall within the outer wall; a bottom is connected to the lower end of the inner wall to define a containing room. Access is additionally provided to cards containing help menus, personalized menus, and user tips. An upper cart stand is pivotally connected to the plate joint. Mechanical binding clips are inserted into cutouts on the spine region of rigid holders. This results in uniform temperature within the surface of the substrate when the temperature of the substrate reaches the reaction temperature.