Blend smoothies and other health drinks together with ease with the B2G1 Mixers, Shakers, and Bottles sale from GNC. The 20 oz Mini Blender Bottle I have pictured here comes very highly rated and is part of the sale at $8.49. Even better, you can stack on code MARSAV and it will take 30% off the first two making them only $5.94 each. Buy 3 and you’ll get the third one free making them $3.97 each! Shipping will add $2.99 flat fee.