Make one of these and see if you can resist making saw noises.
You will need:
-180 1x2 bricks
two color: 90 of each color
three color: 60 of each color
Start making a zig-zag pattern as shown.
Add the top layer and continue the pattern. The short sides will be 4 studs (the dots on top the brick) long and the long sides will be 8 studs long.
Continue until you have 12 long sides and 12 short sides.