There are lots of designs, all with video tutorial here.
http://www.freemotionquilting.blogsp...5-designs.html
It might also be a good idea to practice drawing some designs on paper so you get a 'feel' for doing the lines on the machine. There are also special washable marking pens you can use to mark the fabric, though I have not yet used these myself. A Google image search can be a good way to find images/patterns that you can trace and modify for your own designs.