I enjoy being the Goron fellow and rolling all around, crashing into things. It's really quite a blast. There's a dog in South Clock Town that normally barks at you, but if you're a Goron, he runs for his life!
Little known trick:
With either the Deku Scrub or the Goron, take out your instrument, then put it away and QUICKLY press C^ after you do. If you do this fast enough, you'll be able to look around with your instrument in front of you! Yay!
And there's a place in East Clock town where you can fall right through the stairs. That's pretty kewel too.^_^