The sugar was colored using the same method as the red rice, just a smaller quantity. It probably doesn't make a bit of difference, but FYI we used raw sugar.
Shaking the sugar was a good small (or gross?) motor skill exercise. If we'd had some glitter on hand, I would have tried that. When he was spooning/shaking the sugar, I thought that it would have been fun for him to have a real shaker.
Since we don't see much rain in our neck of the woods, we played with the umbrella outside to keep the sun off of us. I pulled out the hose and squirted him - he used the umbrella for protection. However, as you can see, he wasn't feeling too well. The boy who never sleeps took TWO naps today.