Loud Whistle From Straw

Hi this is my first instructable now im gonna show you how to make a whistle from a straw.it is small and loud which takes less space.

1 straw
1 wooden chopstick
Scissors
Knife/cutter

Cut the straw around 5.5cm
And cut to make a hole that looks like a v (1.5cm from the edge)(0.2cm from the top)

Cut the chopstick into half like in the picture

Put the chopstick inside and cut it

Use the other chopstick that you already cut and cut it to half again and cut 1.5 cm of it and put it inside in the front part of the whistle

Now its finish try blowing it. You will have to blow it hard...you also can make it as a keychain thanks and please leave a comment:) sorry for the bad English please vote :D