[header] How to create a ninja bedroom [title] Go natural! [step] Natural light, earthy tones, and natural materials like wood are all applicable to zen principles. This creates a cohesive look to your room and sets the tone for the rest of your decorating to be influenced by japanese, martial arts, and ninja décor. [title] Take time to declutter and get rid of knickknacks. 
[step] Simplicity is key in the art of zen. Not to mention, ninjas don't have personal affects.