O calls his watercolor tray, Dots. They both did quite well. After four or five painting sessions, we only had one small water spill. I think I like watercolors more than markers. Watercolors wash up, wipe out and clean off much easier than even a washable marker.
We also learned something new. Papa, pay attention, you may not yet know this but, blowing on the brush makes the colors stick to the paper better. See example below.
But, if you aren't a mom, pick yourself up a tray of watercolors. They really are fun!