I had a small stash of quilt cotton remnant, identical pattern in two different colors, more than enough to make a pair of shorts for the 6 yo to use over summer, plus something for myself.
I used one of his old shorts to trace and cut out a pattern in a brown paper bag and used it as a template to make a few pairs of shorts over summer. Nothing fancy like flap-pockets or zipper/button fly, just an elastic waist one.
But, I don't like the puffy stomach that elastic-waist tends to make, so, the front is flat, no elastic, and the back has the necessary elastic to fit snugly and make it easy to pull on/off.
While I was at it, I had enough left of the two fabrics that I made a summer dress for myself - just a simple sleeveless bodice, with paneled skirt part, no shaping/fitting, just a casual dress.