My go-to for inspiration on linear quilts like this is Judi Madsen's blog (
www.greenfairyquiltsblog.com ).
She has done so many different things, all with rulers. Here's the link (I hope) to my favorite one of hers:
http://www.greenfairyquiltsblog.com/...1_archive.html
I just love this quilt!! Sincerely wish it was mine!!