A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
Mostafaalalfy,
Sounds like a job for the Free form shape tool. Insert tab - Shapes button - choose free form under Lines section. Click at the starting point, move and click, repeat as many times as you want. Double click to end the process. You can make life easier if you activate the grid (press shift+F9) which will assist in creating the zig zag if you want.
Luc Sanders
MVP - PPT