Kids Room, Neutral Gender, Toddler Age, Playroom Room Type, Chair, and Rug Floor Brian Littleton isn’t a dad, but he may be the world’s coolest uncle. His brother’s kids come over to play in the indoor tree house, take his model trains for a spin, or just curl up on the Fatboy beanbag chairs.  Photo 2 of 9 in Child’s Play: Designing a Polished, All-Ages Playscape