There is a printable version of the $1/2 any Mars seasonal candy coupon. There are so many great deals on holiday candy right now but the little singles of Snickers can be found at many stores for .50 or less.
This week Walgreens has them for .39 each so you can either get 2 for free or buy 3 for .06 each after coupon.
Usually Walgreens can be a headache about adjusting coupons down so if you decide to just get 2, give that manufacturer coupon first and then the in ad coupon.
Or you can take this over to Rite Aid and get full size bags of Mars candy for $1.00.