For our monster activity, we drew monsters on coffee filters. I told the students that they needed to have at least 3-4 colors for the magic to work (in reality, so they had a variety of colors that would blend together). After their monsters were drawn, we used pipettes to do our "magic" and make our monsters disappear. We talked about the proper way to use the pipette to do the magic (not squeezing it out all at once, but instead using a lot of small drops), and how no more than 2 pipettes full of water were to be used. I told them the magical part was not only did their monsters disappear, they were left with a beautiful piece of art! I wish I had taken more pictures of the final products as some turned out really neat, but making sure the coffee filters were safely moved without spilling colored water all over the place was more of a priority. :)