The Busy Bone buy one/get one free coupon up to 3.99 is back on coupons.com. Recently, I bought these a Publix and did the following.
2 busy bones @ 3.50/1=7.00
2 Beggin Strips @ 2.50/1=5.00
-3.50, B1g1 coupon
-4.00 off 4 Purina dog treats
=4.50 for 4 dog treats or 1.12 each.
You could make this deal sweater by finding the buy/get one peelies on select Beggin Strips packaging that is a Publix coupon. This would lower your out of pocket to just 2.00 or .50 a bag.