My mom is pretty fantastic. Among her MANY talents, she can draw. Once upon a time, I had a green nursery and I wanted a little something on the walls. A friend made a cute two-dimensional birdhouse and I asked my mom the paint a bird to go with it. She painted the tree limb and blue bird using a child's book for reference. It was the cutest thing in the nursery, especially with a little moss hanging from the birdhouse. She even painted us chickens on the wall (maybe this was foreshadowing and I should have seen the "writing on the wall" about the chickens to come).
I can't draw stick figures, so there is no way I could have tackled this, but I am lucky to have a Super Mom come to my rescue when I need it.
Maybe you have an artistic bent? Try adding a little whimsy to your child's walls, what do they love?
acrylic paint (.99 at a craft store)
variety of paint brushes
plastic plate for mixing colors
sharpie pen for details
picture books for ideas
I recommend having an art projector since I can't draw. It takes any image and projects it onto a wall (like an overhead projector) so you just trace. My friend Liz did an entire X-Wing Fighter jet with the art projector that looked incredible. She even used glow in the dark paint for the stars. I'm hoping at some point we can add a rocket ship to Super Bear's blue walls.
Do you have painting talent? I'd love to see photos.