Friendly’s Trick Or Treat Coupons This post may contain affiliate links. Please see the full disclosure policy here. Posted on October 5, 2009 Written by Mary Leave a Comment Amy found a new Halloween Coupon Booklet! Friendly’s is selling coupon sheets with 5 coupons for a free kids cone for only $1, Coupons are valid 11/1 – 12/31! Thanks, Amy!