Remember that curious little toy that created even more curious sound effects? Slide Whistle works just like those old slide whistle toys, only now with a digital flair.

To play, simply tap the volume button and then slide that whistle to your hearts content.

A little practice and you’ll find yourself right back in your parents living room cross-legged on the shag carpeting impressing your friends from school with your very own rendition of mary had a little lamb, or twinkle twinkle little star.

Available for iPhone, iPad, and iPod touch on the Apple App Store.