Check out this tutorial on dying carnations - perfect for your Memorial Day Weekend. Take some white carnations, put them in cups or vases with red and blue food dye and see what happens! Click here for the details from Make and Takes. As an added bonus - someone responded to the post and suggested splitting the stem of the carnation in half or quarters and then putting each piece of the stem into different colored water to get multi-colored flowers. This could be a fun little experiment to do with your kids.