Calling all you who have a Culver’s in your area and live in AZ, CO, FL, IL, IN, IA, KS, KY, MI, MN, MO, NE, ND, OH, SC, SD, TN, TX, UT, WI or WY. Through December 13th, head on over here, fill out the form and follow the prompts to send a friend a coupon for a free Mini Concrete Mixer. You can send a Mini Concrete Mixer coupon to up to 3 friends per day, limit of 1 coupon per email address.