I make preemie quilts for the Special Care Nursery at the hospital. They are really small to fit in the isolettes.
They are really good for learning all types of techniques as they are small and easy to manipulate under the machine.
I got reasonably good at stitch in the ditch and free motion quilting by practising on the preemie quilts. They work up fast and give you a good sense of accomplishment. The little ones don't care if it's perfect, they keep warm.
I just contacted the hospital and asked what size they wanted. Then I putter away til I have enough to take to the hospital. I ask that the quilts go home with the babies so that gives me an excuse to make more.
I figure I am accomplishing two things, honing my skills and keeping preemies warm. Win/win.