Tagxedo is a website I've been exploring for a few weeks after hearing a former colleague was using it as a first day of school activity during which students made a self portrait using words that describe themselves. Tagxedo is similar to Wordle as it uses individual words to form art. Where Wordle creates word clouds, Tagxedo creates art in the form of any image you can come up with. When your students are doing a report on an animal, why not have them use their descriptive words to form the image of that animal. The gallery is full of ideas, and I'm sure you will come up with many more! You will need to download Silverlight for Mac or PC in order to create your word art.