So... what can you do with a piece of wood measuring 45 inches by 3 1/2? Well, if it's 1 inch thick, you can use it to make the cutest wall rack. But instead of using hooks, use drawer knobs! Here's how the idea got started. I needed a place to photograph kids aprons. Now, most of you know that my girls have been modeling them, but they can't model toddler aprons, right? All I could picture was a gorgeous crystal knob rack used to display those mini aprons I love to make. And after searching…