I recently used natural dyes to dye fabric and threw some wood plaques in for fun. I love how they turned out!
I boiled blueberries until the water was pretty saturated.
I decided to leave the blueberries in the water. Lots of people would strain them out but I wanted to get the richest color I could without waiting for a long time for the water to become more saturated. (Lazy much?)
I left the wooden plaques in the dye bath for at least an hour.
Here is they are all dried and a beautiful purple hue. I typically use these wooden rounds to prop up small vases and centerpieces.