Keep Calm and Proofread (clam) (any color) Mouse Pad
This is the classic war poster "Keep Calm and Carry On" still with the original crown at the top. It's reworded to "Keep Clam and Proof Read". It's a funny design that often takes a second look. It makes perfect presents or gifts for teachers and students alike. Not to mention editors and writers, anyone who works with words. It's a great poster for your classroom, or study hall too.
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.