First, let every student make a fingerprint onto white paper. Next, blow up their fingerprints using the photocopier or larger). Then, Have your kids write words and phrases about themselves along the lines and whorls of their fingerprints :) Cool idea
Free Multiple Intelligence test for kids - includes directions and a short video that explains how to administer it to your students. This looks like an interesting tool for finding and understanding students' strengths.
Incorporate art into writing (poetry): Students can even pick a page from their favourite book as an inspiration. Book page poetry is really neat and a great way to show creativity with older kids. This is an interesting way to teach poetry.