After seeing them on this board I started making some and it's addictive. They are called Folded Star Ornaments:
Here are other links:
good pics:
http://www.make-stuff.com/projects/quiltball.html
http://www.quiltingboard.com/t-31032-1.htm
best instructions:
http://quilting.about.com/od/holiday...abric-star.htm
Each ornament takes one 3" Styrofoam ball, one 2.5" strip of each of three fabrics (light, medium, dark), some ribbon, a TON of super-fine straight pins, and hot glue gun for putting the final strip around the middle.
At first I was ironing the squares, then got bored and found it worked pretty well without the ironing step.