I used to do this to my girls' jeans after school let out. Great way to boost the summer wardrobe for next to nothing! Transform an old pair of jeans into adorable summer shorts using bias tape. Instructions on the site.
New to sewing? Start here with this very easy elastic waist skirt that anyone can sew. This tutorial is a fun sewing project for beginners. Makes child and adult sizes. EASIEST ELASTIC SKIRT TUTORIAL EVER!