with medicine droppers. The kidlets had been carrying them around, playing all morning. When J went to down to nap, I set up a quick activity for transferring water, adding food coloring for fun.
When the kidlets started mixing colors, we expanded a bit to allow for more color mixing and not so much fighting, as well as maintaining a true container for each color. They had a great time and only stopped because J was waking up and I didn't want her to get involved this time. When we do it outside (next Spring/Summer) she will love it!
These ice cube trays (from the Target $ spot) were a great size, having lots of holes for a lot of color mixing. The only down side was that because of the colored bottoms, they were hard to see what color had really been mixed.