Here’s a shaker I recommend for smoothies: Nutri Ninja Pro Personal Blender with 900 Watt Base and Vitamin and Nutrient Extraction for Shakes and Smoothies with 18 and 24-Ounce Cups
Amazon description:
- 900 watts of professional power breaks down fruits and vegetables for nutritious juices and smoothies
- The Nutri Ninja Pro provides you with powerful Nutrient & Vitamin Extraction performance to extract hidden nutrition from whole fruits and veggies
- Twist on the Spout Lids and take your drinks with you for easy on-the-go sipping
- Manually pulse to easily crush ice, seeds, skins, stems and frozen ingredients for a smooth, even consistency
- All parts are BPA free and dishwasher safe
