Abstract: Disclosed is a shape sorting bucket for use in combination with a set of construction toy blocks having coupling elements that make them detachably stackable onto each other. The bucket is made of three parts including a container defining an enclosure in which the construction toy blocks can be stored, a shape sorting rim extending above the container, this rim having walls provided with holes of different shape, and a lid detachably connectable onto the rim, this lid having an upper surface from which project coupling elements similar to or compatible with those of the construction toy blocks, whereby the lid can be used as a base plate for use to play with the construction toy blocks. Some of the construction blocks are sized and shaped to snugly fit into and thus be sortable through the holes in the walls of the rim, whereby the bucket can also be used as a shape sorting toy. This bucket can be personalized into a character.