Pattern: Boy's Polo (rav link)
Yarn: Knit Picks Shine Sport
Needle: US 4 (US 3 for button band)
Another test-knit. Super quick and fun little sweater. I think this pattern will make a great palate for lots of different designs. I made the 18mo size as a 1st birthday gift and it seems to fit well, while still leaving a bit of room for growth.