Heart of Gold Crib Mobile (Gold). Lull your baby to sleep with our gold and white elephant baby mobile. The rotating baby mobile features sweet elephants hanging down for your baby to watch and fall asleep to. This crib mobile fits standard size crib rails. Rotating wind up mobile plays Brahm’s Lullaby. Use from birth to about 5 months or remove from crib when baby begins to push up on hands and knees.