It's pretty unlikely that they will be found in stores at this point...especially WalMart or K-Mart. Those particular boxes were Target exclusives, and that series was discontinued when Target opted to stop carrying them in favor of the latchtops. IF any were to turn up in a Target (or anywhere else), as soon as the information was out - they'd be gone (and that allows for the off chance that the finder didn't snatch them up on sight, lol). If it anybody can confirm that a store has them, they could make friends pretty quickly by passing that information along
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**I'm pretty sure that I had seen that word from Target was that none were available in any of their stores or warehouses