Abstract: A method is provided for attaching two objects, generally toys such as building blocks, to each other. The attachment is enabled by a first attachment means to a planar surface of a first object and a second attachment means to a planar surface of a second object. The first attachment means and second attachment means can be bonded to the corresponding object by an adhesive material such as glue, by traversing a corresponding insert into the object (resulting in an interference fit), and ultimately by any means applied by a manufacturer. The first attachment means serves as a male interface that can be engaged with a female interface of the second attachment means. By engaging the first male interface with the female interface, two objects can be attached to each other. An object can be provided with both a male interface and female interface in order to attach multiple objects.