US Patent 7300202 Clock having a playing function

A clock includes a main body having a lower space and provided with a protruding post extended into the lower space, a face plate mounted on the main body and formed with a plurality of holes, a tumbler mounted in the lower space of the main body and rested on the protruding post, a top cover mounted on the main body to form an upper space, and a plurality of rolling balls mounted in the upper space and placed on the face plate. Thus, the clock has a playing function and can produce a figure arrangement variation.