Abstract: Apparatus and assembly for aligning a mobile mounted to a crib. A mounting base includes upper and lower sections. When the base is mounted to the crib, the upper section extends above the top of the crib, and an externally threaded segment of the lower section extends through an aperture defined by slats of the crib. An intermediate element having both internal and external threaded sections is moveable along the segment to adjust alignment of the mounting base and alignment of the mobile attached to the mounting base. An internally threaded fastener is threadedly secured to the external threaded section of the intermediate element to secure the mounting base to the crib. Embodiments significantly improve crib safety by providing a securing mounting mechanism and also improve mobile appearance by providing a properly aligned mobile.