This is the classic war poster "Keep Calm and Carry On" reworded to "Keep Calm and Ninja On". I've kept the traditional crown at the top and added ninja silhouettes on and around the words. It's a funny cool design that is great for anyone who loves ninjas..
I've put this on a purple background, but you can change that really easily. Hit 'Customize it' and then 'edit', and you'll be able to change to absolutely ANY color you prefer.
Customization/Personalization: If you like the design but would prefer a change in wording, or decoration, please contact me. Just visit my store and use the 'send message' link, with no obligation to buy.