I got this idea from Ashley on Lil Blue Boo's blog and fell in love with it. The full length pants would work for my son, but I love the idea of the cropped length for goucho pants for a little girl. The t-shirt I used was from the teenager's Junior size, so I was limited by length to make full length pants for my son (I made the 6-12 month size). So this will one day be for a daughter I may have.
I don't know if my son is built different than most, but once I was done, the pants were quite low-rise on him - or he just had a very full diaper and that was making the pants lower than were meant to be :) So when I make these again, I will probably add an inch or so to the top measurement to make sure my son doesn't dress immodestly :)
The shirt had a "Hershey's" logo on it, so I cut that off the shirt and applique'd that to the leg.
Luckily, I have a full box of t-shirts I had in HS or college that would be great for an idea like this - Slinky, Sesame Street, Strawberry Shortcake, My Little Pony, and several others. And I just may steal my husband's Transformer shirt to make my son something soon - but he still wears that shirt. . . I wonder how long it will take him to realize it's missing and my son has something that looks like the same shirt :)
Next, I'm going to try the skirt that Ashley has a post on as well . . .