The Scrappy Tumbler Quilt 7.1.12

I have been seriously working on getting my scraps under control.  I have decided to make a scrappy tumbler quilt.  Here are the rules I am planning on this quilt:

1.  NO repeat fabrics; each block will be different.
2.  Each block must contrast the next.
3.  Cotton only (no flannel or polyester)
4.  No cheating and using charm packs... only charm pack leftovers can be used.
5.  Sew them together when I have 36 pieces. 

I realize that this could take forever. I have row one complete.  LOL.