ToysNGamesEtc via Amazon offers Amazon Prime members this Sprout Cups BPA-Free Baby Food Container 12-pack
with free shipping
. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $5.85.) That's $9 off and the lowest total price we could find. This stackable set includes a tray, Dry-Erase marker, and 12 2-oz. containers with interlocking bases and lids.