Judy hope you have fun picking out your new machine! I need those couple extra weeks so no worries here! I love the mystery trains too they are so very fun. I think when it comes to picking fabrics here the key is to really go with the contrast level Judy suggests. Also if she is using a small print on her high contrast you probably should use a small print on that one also.. this way when its all pulled together everyone will have a higher chance of success. The designs are great. And you are free like Jen did to change things up a bit, add your own extra things to personalize it so you end up with a quilt top that you love. and I think we all share out photos of fabric possibilities right? just be honest when you see a combo that might not work or a fabric that you think is not of enough contrast value. This helps us all.