Abstract: A timing device includes a ball and a platform. The platform has a path forming a zig zag route from side to side of the platform between the ends of the platform, and a point along the path where the ball can be introduced. The ball may drop out of the path at holes at each of the two ends of the path. A stand is configured to support the platform, allowing the path to pivot around a central line, where each end of the path is able to be tilted upwards or downwards to cause the ball to roll along the path towards the end that is tilted downwards in a predetermined time period.

Abstract: Systems and methods for decorating fabric material may include a device. The device may include a first absorbent layer, a second absorbent layer on the first absorbent layer, and a water-soluble dye between the first absorbent layer and the second absorbent layer.

Abstract: A colouring structure comprising: a substrate, and a colouring layer disposed on at least a part of the substrate; the substrate and the colouring layer are made from different materials and have different water absorption properties, the colouring structure comprises a plurality of colouring areas and at least one separating area, wherein the colouring area is at least partially defined by the separating area. The colouring structure allows the user to easily grasp the pattern engraved on the colouring structure, which can rapidly absorb the liquid such as ink added to the surface thereof and effectively slow the horizontal diffusion of the liquid added to the colouring layer. For liquids with high water content, the high water absorption of the colouring structure avoids or effectively reduces accidents caused by the use of high-water-content liquids, such as liquid leakage, and liquid spillage and dirtying clothes or body parts over large areas.

Abstract: A colouring structure comprising: a substrate, and a colouring layer disposed on at least a part of the substrate; the substrate and the colouring layer are made from different materials and have different water absorption properties, the colouring structure comprises a plurality of colouring areas and at least one separating area, wherein the colouring area is at least partially defined by the separating area. The colouring structure allows the user to easily grasp the pattern engraved on the colouring structure, which can rapidly absorb the liquid such as ink added to the surface thereof and effectively slow the horizontal diffusion of the liquid added to the colouring layer. For liquids with high water content, the high water absorption of the colouring structure avoids or effectively reduces accidents caused by the use of high-water-content liquids, such as liquid leakage, and liquid spillage and dirtying clothes or body parts over large areas.