When I make the stars for the 'Oh My Stars!' quilt, I usually make them in groups.
One 3 1/4" stripe of the white fabric makes for 8 of the small stars, with a 5 1/4" stripe I'm getting enough for 6 middle sized stars and a 7 1/4" wide stripe is good for at least 3 large stars. So, instead of making one star at the time, I'm making 8, 6 or 3 stars in one go.
This is all the material I need for 8 small stars: