My nephew and grandcousin (first cousin once removed) have birthdays two weeks apart, and they turned two at the beginning of the summer. By luck, we were visiting my family in Europe for my grandcousin's birthday, and we were able to attend his birthday party.
I made two identical little polo shirts for little boy second birthday gifts. They're size 2T Oliver + S Parachute Polos. They went together pretty smoothly and I was happy with how they turned out, but I don't quite like this pattern as much as I like the Sketchbook Shirt. Part of it was that I fought with my machine hemming the knits. I ended up using a twin needle on the sleeve hems and a triple stretch stitch on the shirt hems, and wasn't 100% happy with either one.
I also think the inside of the side vent could be a little cleaner.
I did like how the inside of the collar and plackets looked, though.