This "onesie only design" is a parody of the Straight Outta Compton design, except it says "Straight Outta Mommy". It's available in traditional black and a variety of other colors.
Our Newborn Onesies are sized for ages 0-3 month, but one thing we learned with our kids is that we could get an extra 3-6 months out of our favorite onesies by not snapping them and letting them wear them as a shirt after they outgrow the snaps.