Form a grass brass band
It’s one of those rare talents that few have and fewer learn (like rolling your tongue), but we’ve got all the know-how to have you whistling a symphony in no time.
Make sure the grass is taut between your thumbs, and if you don’t hear anything, try to make it tighter.
You can even make a grass brass band! Gather your friends and give each a different width of grass and toot away to your favourite tunes!