August 20, 2010 No Comments Free Thumb Wars Bumper Stickers Tell them how you’ll use them to spread the word about Thumb Wars and you’ll get 5 free stickers for you and your friends! Remember- bumper stickers are for people 25 and under. Free Thumb Wars Bumper Stickers Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.