An object-containing button includes a housing and upper and lower floors mounted within the housing. Each floor has a plurality of thread-receiving holes and two pin holes formed at opposite side of the thread-receiving holes. A container rotatably and detachably coupled to the housing. An object is stored inside the container. A removable lid covers a bottom opening of the container facing the upper floor. A pin-carrying member having two pins inserted through the pin holes for piercing and tearing open the cover.