At Kmart, search for "MBR-1701" to find the Magic Bullet Express Blender 11-Piece Set, model no. MBR-1701, for $39.99 with free shipping. Plus, Shop Your Way Rewards members receive a $30.40 SYWR credit. (Not a member? It's free to join.) Assuming you'll use the credit, that's the lowest total price we could find by $30. This 250-watt blender system includes blades and tall and short cups.
Of note, Shop Your Way Rewards members will earn a Kmart credit with this purchase and may be eligible for additional credits and discounts.