#1 & 3 are my own designs. #2 is from a tutorial from Vicki's Fabric Creations. Here is the link to the tutorial. Mine has 7 strips, the tutorial has 4. If you want more than 4 rows, you just need to adjust the width of your strips to match the width of the strata in the tutorial.
https://docs.google.com/file/d/0ByHo...mM3/edit?pli=1