Try Nature Valleyl Trail Mix Bars for Free This post may contain affiliate links. Please see my full disclosure policy for details. November 8, 2009 8 Nov Pin0Share0TweetGoogle+0shares You can try Nature Valley Trail Mix bars completely free! Just buy a box and mail in this form for a rebate up to $4.99! (Thanks MoJo Savings!) Like what you read here? If so, subscribe via e-mail or RSS Reader. You can also catch me on Twitter too!