I've made several capes in the past, but this was the first time I used a satiny material. It wasn't much more difficult than regular quilting cotton, especially with the use of MANY pins. For the star and L, I freehanded the designs backwards onto Wonder Under, ironed them on, then zigzagged around the edges. I also used my snap setter to add a snap to the neck, instead of velcro. I think it makes it look a bit more professional.
The pillowcase was super simple, but I did do french seams. I just like how they look, and I know it'll last longer (especially since my sister washes everything constantly.)