I just spent way too much time playing with InMod's "design your own pillow" tool - it's so cool! They have patterns to suit just about anyone's taste, including a Modern Classics theme featuring silhouettes of iconic chairs. I really like their Organic and Retro themes the most, though. After you've picked a pattern, you can play around with different fabric choices and colors. The pillows are surprisingly affordable too, especially considering they're "custom". So, head over and check it out. Be warned, you may lose a good chunk of time!

Design Your Own Pillow from InMod: $40 - $50

P.S. They also have a coordinating design your own bedding tool!