We like to experiment with different mediums in our painting. Today's choice: chocolate syrup. It's liquid, about the same consistency as paint and brushes on well. Plus, it smells divine. The downside is that it is sticky, and since any painting inevitably leads to M making hand and foot prints, it got very messy.
(We are doing butterfly week and M insisted on wearing her butterfly crown around all day long, even after it got bent.)