This week Rite Aid has Butterfingers bars on sale 2/$1. This includes the Butterfinger Snackerz as well. Get them free with this deal:
Butterfinger Snackerz 2/$1
Use $1/2 BF Snackerz Printable coupon
Two Free after coupon
You can print the coupon twice to get four free. I found these by the register at my local store.
Thanks, Southern Cali Saver!