With orders of $25 or more, Amazon offers Prime members the Fit & Fresh Kids' 13-Piece Reusable Lunch Container Kit with Ice Packs, model no. 355KFF, for $4.03 with free shipping. (Non-members can spend $35 to qualify for free shipping.) That's the lowest total price we could find by $17. This set includes a salad/fruit pod with a dressing dispenser, a sandwich pod, a 1-cup container, and a 2-cup container.
Note that this item is part of Amazon's "Add-on program" and can only be purchased with an order of $25 or more