I made one of these at our local LQS a couple weeks ago. Yes it is very fast. We had a race too! I wanted to do another one and didn't want to spend another 42.00 for a Jelly Roll, all though I LOVE the Watermelon colors, so I picked up a stack of five fabrics for 22.00 and cut my own strips. They were purples and greens. There wasn't a lot of different colors, but it came out pretty enough. I do like this technique though.