I was going to recommend an Oster also because of this: After being a big fan of the Magic Bullet and then breaking 3 of them, my DH finally brought home a cup attachment to use on our Oster blender:
http://www.amazon.com/Oster-6026-Ble...ref=pd_sim_k_7
It's awesome! And I think he got it at Costco or Sam's Club as a kit with 2 cups and extra blades. Much cheaper than a Magic Bullet and great for smoothies and shakes.
