Once again an easy way of providing your dog with some enrichment with an object that otherwise would go in the bin. Plus, it saves me having to wash it out!
I often give my girl yoghurt pots, peanut butter pots (no xylitol) and tetra packs that the wet food I use to stuff her kongs with.
Just be cautious that your dog can eat whatever is in the container and it won't be too rich.
Not sure if your dog can eat it? Then Google is your friend.
Remove the container once your dog has finished to prevent chewing. We don't want them to ingest any plastic.