I love dogs.  I have two of them, and I love them to bits.  I think this could be a thoughtful handmade Christmas gift for the dog lover on your list.  I even have one of these glass canisters sitting on a shelf in my kitchen, just waiting to find its true purpose in life.

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You could also fill it with homemade, healthy dog treats.  There are millions of recipes out there.  I like this one because it also helps fight doggie halitosis.