Cut - Blend - Freeze June 27, 2016 It's that simple to cool down on a humid sticky day in Houston. A whole watermelon is a lot in my house so after filling the ice trays I had a few pieces leftover to enjoy later. If you don't own the nutribullet, a blender will work too. These ice cube trays are awesome! They were just under $10 at Bed Bath & Beyond. ENJOY!!