Here is a great link to a youtube video on the EASY pillowcase pattern I use. I dont always put the accent piece either. just a cuff and body. ENJOY! (ps...joanns has their flannel on sale for 2.49 a yard. works great for kids cuz its cheap)
This is my tweens pillow case. i used that longjohnjersey type fabric for cuff. not the easiest stuff to work with but it made this case FUN! I cut the material 27 x WOF (width of fabric) for the body and the cuff was 9 x WOF. this size is perfect for a regular pillow.