Abstract: A towrope retriever system for a watercraft for simplifying and improving the safety of the towrope handling, storage, reeling out, and reeling in of a towrope, in which the towrope retriever is connected to or integrated into a support unit such as a tower or pylon securely attached to the watercraft, substantially increasing the overall height of the watercraft, and allowing the performer to jump higher and perform more challenging aerial maneuvers, is disclosed. The towrope retriever may be rotatable to allow the performer a greater flexibility of movement and may be easily removed for storage.

Abstract: An illumination case used for decoration or advertisement. It includes a case-body, a front cover, an inner frame, a light source, a transparent back plate, an illumination filmstrip, a grating plate, and two step motors with a transmission that drives the grating plate to move. The transparent back plate is fixed onto the inner frame. The illumination filmstrip overlays the transparent back plate and is fixed against it. The two step motors mentioned above are installed on the inner frame behind the upper part or lower part of the transparent back plate, one on the left side, and the other on the right side. The above-mentioned grating plate is fitted with a hanging bar on both the upper side and bottom side respectively, which makes the grating plate spread out neatly. One hanging bar is linked with the transmission of the two above-mentioned step motors through a set of corresponding levers installed on the inner frame.