What should I do with 400 grams of cotton blend DK weight yarn?

I recently ordered 4 100g balls of a cotton rayon blend yarn, thinking it would be worsted weight, but i guess it was mislabeled, as it is definitely DK weight. I have it in light pink, light blue, light purple and white. I don't want to make anything too big, like a blanket but would be open to a summer top or something along those lines. I only have 100g of each color.