The pattern is New Look 6638, which I have used before to make the short sleeved view. We didn't completely love the way they worked out. The gathered legs tended to ride up, and the short sleeves left her arms cold. This time, I skipped the elastic at the ankles and made the longer sleeve. Hopefully these will keep her nice and cozy.
She picked out these cute fishie buttons to go with the Little Mermaid fabric. I think they are too adorable! Since they are sew through buttons, I decided to match the thread to the button rather than use the garment thread. I think this gives a more professional appearance (inasmuch as fishie buttons on Ariel PJs are professional). What do you do when you have a contrasting button? Do you match thread to the button or the garment?