Hot Dog Chips
Purchase lean turkey hot dogs, and a box of snack size zip lock bags.
Keep some small pieces of hot dogs frozen at the practice for special uses. These uses include pilling difficult pets, using as a lure for pets who are not excited enough about jerky, or to use as a reward for a pet who is in private training.

Slice all the hot dogs into small pieces, and make up a dozen or so bags, and freeze them in the practice freezer.
They will thaw within seconds as needed, when in these small pieces.