One king-size pillowcase was enough for straps, a full apron, and pockets!
I ripped the seams from a king-size pillowcase and ended up with fabric to spare. The tutorial on which I based my design is below. The tutorial makes use of coordinating fabric, but I am happy with the one color (if you can't already tell by the grease stains on the apron!) :)
Leah posted this project as a creation without steps
Here are some similar tutorials to help you make this one!