The very first Daily Create ever was a challenge to create an image of repeating patterns, and it has been used again and again here. It’s a great exercise to practice your noticing skills of the world around you, and finding beautiful details in the ordinary.
Flickr just wrote a blog post on Geometric Photography Inspiration and Tips from Members of Flickr Social featuring just a few fantastic images shared to a call in the Flickr Social Group e.g.
(sadly all images are copyrighted, pffffftt) (maybe this will embed) (Share your stuff!)
See of you can recreate any of the suggested photos, follow their tips, or just try your hand at getting a closeup on a geometric pattern.