Mini Bristol Board Boomerang

This is a boomerang i found in a book(boycraft or 100's of things a boy can make, i forgot which one). this is my first instructable so tell me what could make it better.

what you need:
-bristol board
-scissors
-pen or pencil
-ruler
-table

Measurements:
-Long sides of rectangles=2 inches

-Short sides of rectangles=1/2 inch

-Cut out

To throw hold one appendage(<