I've been seeing a lot of symmetrical geometric prints framed and hung in groups. People are especially loving this set of 6 from Crate & Barrel:
Others find that $ 369 is just too much to spend right now, and have been going about getting a similar look in more creative ways, such as framing 60-cent pieces of colored craft paper in Ikea frames:
via Young House Love
But I just discovered Sprik Space, where the wonderful Aimee offers free downloads of geometric patterns in several different colors.
The patterns she offers include Circles, Leaves, Grid, Chevron, Diamonds, Houndstooth, and more.
She then recommends getting them printed on 12"x12" size from Costco for $ 2.99 each, and framing them in Ikea Ribba square frames at $ 17.99 each. If you follow these instructions, a set of 6 costs only $ 125.88!
She also offers other great downloads in various color options, great for nurseries, gallery walls, craft rooms, etc. Just a few examples below:
See more at Sprik Space, under the Freebies tab!