One of my first assignments in high school... photograph a vegetable. I found this dying, wilted head of lettuce in the back of the fridge, and proceeded to shoot an entire roll. I flopped it all over the house, on an outdoor spigot, hanging over a desk lamp, on a paper towel with the rug behind them both. What a study in textures that was!!

Fun assignment... try it.

And don't ever let "it's been done before" stop you. After all, it hasn't been done by you. And so what if it only excites you? Do you really believe that you can't make a good photograph of something that excites you? You might find other's share your excitement when you've made a good picture.

Stop thinking about, and go shoot.