G'Day matey

I found this site, I hope it helps :)

http://www.bigwhistle.co.uk/

he's got alot of stuff there for
He Wtites:

If you are interested in Tin Whistles then my website is the place for you. Here you can purchase Irish Music and Whistle sheet music and learn how whistles are made. You can buy Whistles & Flutes online at my Whistle Shop along with material to help you to learn to play this marvellous instrument. Don't forget to visit my World Wide Whistling Gig Guide and remember to peep into my Special Offers and New Products sections from the world of Penny Whistle Music.
Have A Great Play :)
we wanna see u on youtube :)