It's official—Sarah Palin is now a hockey grandma. Her 18-year-old daughter, Bristol, gave birth to a healthy 7 lb., 4 oz., pound baby boy on Saturday in Palmer, Alaska. And in a departure from her mother's penchant for creative names (Track, Piper, Willow, and Trigg), Bristol named her firstborn the relatively normal Tripp Easton Mitchell Johnston. Bristol and Tripp's father, Levi Johnston, are engaged and have been together for three years. "We think it’s wonderful,” Colleen Jones, sister of Bristol’s grandmother Sally Heath, told People. “The baby is fine and Bristol is doing well. Everyone is excited.” Most notably excited is sporting goods manufacturer Easton, which just got itself loads of free publicity.