Feliz Navimom
Da "winter holidays" title dat appeals to da women's libbers of da world.
Small children are naturally less shy and more trusting around women than men (that's one reason that kindergarten and lower-grade schoolteachers are traditionally female), so having a visit from "Mother Christmas" during Feliz Navimom sounds like a good idea to me, since it would often create less fear and anxiety among da little ones than da "big jolly bearded guy in a huge red snowsuit" often does when he comes to deliver presents.