Hello, I want to make this cowel neck scarf for my mom by christmas. It's pretty easy. My only problem is that I went to the craft store and they did not have the circular kneedle length I needed which is 24" long. They only had 29". The circumference of the finished cowel is 28". Can I substitute the 29" for the 24" without a problem? If not, are there any other ideas? There aren't any other places where I can get kneedles around here. Help!