Here's a new t-shirt from a 1974 McCall's pattern:
Groovy girls with long, long legs and hunchy shoulders
I had a small amount of blue flower print knit fabric. Really thin stuff and less than 1 meter. It was a jigsaw puzzle, but after a few false tries I was able to place the short t-shirt pattern pieces on the material with nothing left to spare. Didn't take too long to make, and I like the result with the flowy, retro sleeves.
I added a little pocket and sewed in some pink decorative elastic around the head opening.