My two favorite inspirational quilters for ruler work are Judi Madsen (
http://www.greenfairyquiltsblog.com/) and Lisa Calle (
https://www.lisahcalle.com/). One of my all-time favorites of Judi's she did way back in early 2012 (here's the link:
http://www.greenfairyquiltsblog.com/...1_archive.html ). Any time I'm stumped for inspiration, I go to her blog.
Lisa Calle has some awesome rulers (Quilters Groove) that I use all the time. They make cross-hatching and curved cross-hatching easy-peasy. Her DVD's are pretty awesome as well.
Customer service from both of them is outstanding.