I designed the Yarn Minder pictured to steady the flow to my needles. My dear sweet husband made it a reality with some wood and some small diameter PVC pipe. The Yarn Minder double decker is great for using two together as one. In the picture, I'm actually making two scarves at the same time on a knitting loom.
I really wanted something sturdy. I made some scarves for gifts last month, and winding the ruffle yarn on the pvc pipe helped a lot. But it was just rolling on the end table behind a couple of coffee cups. LOL This works much better.
Necessity is the mother of invention, so they say. Sometimes you have to make do with what is at hand. Sometimes you have a husband that is just itching to use his power tools.