Two piece interchangeable button

A two piece interchangeable button assembly that includes a base section having a flat top surface, a centrally located recess passing downwardly through the top surface of the base to a predetermined depth, a series of thread receiving holes passing upwardly through the bottom of the base into the recess whereby the base can be sewn to a garment, a T-shaped keyway disposed inwardly through the side wall of the base having a narrow vertical opening passing downwardly through the top surface of the base and an expanded horizontal slot that is parallelly aligned with said top surface, a button head having a flat bottom surface that complements the top surface of the base, a locking key depending downwardly from the bottom surface of said button head that is slidably received within the keyway formed in the base, said locking key having a stem that fits snuggly into the vertical opening of the keyway and an expanded lug that fits snuggly into the horizontal slot of the keyway such that moving the locking key laterally into the keyway brings the top surface of the base into tight sliding relationship with the bottom surface of the button head, and a stop means associated with the base to intercept the locking key when the top surface of the base is in overlying registration with the top surface of the button head and thus preventing further entry of the locking key into the keyway.