This adorable baby cardigan was designed by Dream in Color Designs.  Originally made in Dream in Color Classy yarn, but any worsted weight washable yarn will work.
 
Size: 6-9 months (finished chest measurement is 20" with finished length being 11")
Needles: US 5 & US 7 in 32" circular needles & double-pointed needles
Yarn: worsted weight - 1 skein each of 6 different coordinating colors
Gauge: 4 sts=1"
Notions: 5 buttons
 
Can also make matching Rocketry Blanket with your leftover yarn!