Black Mesa Research Facility Baby Onesies is designed and printed in U.S. from our team members. Black Mesa Research Facility custom artwork is related with black, mesa, research, facility, half, life, half-life, halflife, gaming, new. All artworks have their own story. Pick the one which fits with you from our cool artwork section, show your style and personalize your life. Make someone happy with this custom art as a unique gift for Mother's Day, Father's Day, baby shower, baby and kids birthday, Christmas, special events and many more.