Clockwise from top left: Gwyneth Paltrow recently recommended Stardust Kids' tattoo pajamas ($46) that can be personalized with lil ones' names. Ring in the new year with a pair of PJs that scream New Year's Eve ($48). Crewcuts' new union suit pajamas ($50) can start a new family tradition. A classic pair of Gap's microfleece PJs ($20) can have lil ones looking just like dad! For that all-important family photo, these Penguin PJs (starting at $30) give everyone a Winter touch.