- you can cut a long jeans.
You can also just a short cut that you already have.
bleaching. ( bleken).
You can bleach your shorts, so you get white shorts. or, for example the one side of the short bleaching and the other plain or normal to the bottom and the top bleached to normal, with a sort of ombre effect. This is done by filling a bucket with water and bleach.
You can back pockets bonding with another clothing material also can click the (rear) bags or in other places studs paste, for example, a hand full of studs, and the other normal. You must be careful that the studs are not loose in the wash.
You can also shorts painting with textile dye. This must be really textile dye, otherwise it is off in the wash.