Definately a treat jar! In fact, I NEED one at the moment! I'm looking for one that has the rubber gasket seal for freshness (and to keep treat thieves out )

There are so many cat and dog frames out there now that anyone can find one at even the local RiteAid (I know this as I saw one the other night at Rite Aid) and you'll never get your money for them - the Rite Aid one went for $5. Your materials alone would be that.