My daughter needed to do a school project, decorate a t-shirt. She got out the marker pens and began. I suggested painting it with acrylics...and off we went to the studio. She mixed the color she wanted and practiced on one of my shirts that had an unfortunate stubborn stain. Here are a couple of images of the process.
Inviting kids into the studio is an excellent way to remember how easy it is to be creative.