$1 Halloween Coupon Books at Wendy’s This post may contain affiliate links. Please see the full disclosure policy here. Posted on September 26, 2009 Written by Mary Leave a Comment New Halloween Books available at Wendy’s. I have verified these ARE being sold in Orlando (saw them today!) Each book costs $1 and has 10 coupons good for a FREE Jr. Frosty valid between 11/1/09 and 2/1/10!