I know this is not a Walmart deal but I am always looking out for the best deals for you.  Target has Paper Mate pens on sale for $1.00, they also have $1/1 coupon, making them FREE.  Thanks Clipandfollow (for photo and deal)

Paper Mate 10ct pens $1.00
$1/1 Paper Mate Coupon (Target store coupon)  Look under Back to School
Total: FREE