James C. Brett Baby & Children Patterns - JB176 - All in One Suit is a similar pattern: childs sweater garment, for babies and children, and super bulky (11 sts or less/4 in) yarn gauge. You may also like Andrea Rangel Knits Patterns - Pembroke, which is another similar pattern: 9 (2.25 sts. / inch) finished gauge and super bulky (11 sts or less/4 in) yarn gauge.
You may enjoy taking a look at the Knitting Pure and Simple #9730 Childrens Neckdown Pullover, Knitting Pure and Simple #982 Babies Neckdown Cardigan, Knitting Pure and Simple #256 Basic Vest for Children, and Knitting Pure and Simple #232 Children's Tunic kits all using Knitting Pure and Simple Baby & Children Patterns.
Hopefully our suggested yarn options for 9730 - Children's Neckdown Pullover can help you come up with your next exciting new project idea!