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.
Transfer right to fabric. Make Your Own Clothes: How to Make a Pattern - Thanks to we have this amazing article on how to make your own pattern. Read up on this amazing skill and create clothes that fit your body type.