This pink top Blender Bottle is currently $3.33 as an add-on item.  Most of the colors are selling for around $7.99-$10…so this looks like a pretty good deal!

• 28-ounce capacity (Note: measurements only go to 20 ounces)
• Patented mixing system uses 316 surgical-grade stainless steel BlenderBall found only in BlenderBottle brand shaker cups
• Updated features include patented loop top, ergonomic flip cap, and tapered spout
• Perfect for protein shakes, smoothies, pancake batter, and more
• Dishwasher safe, BPA- and phthalate-free; available in three sizes: 20-ounce, 28-ounce and 32-ounce

Thanks, Passionate Penny Pincher!