This is a very simple duct tape Instructable for making a buckle fastening out of duct tape.
I used mine to make buckles to hold a cardboard art portfolio closed.
The last picture is a diagrammatic overview of all of the pieces of duct tape you will need to make one buckle.
(Materials: duct tape)
Step 1: Fold strips
1 long and 2 short pieces of tape.
Fold each of those three into thirds so there are no sticky bits showing.