You've heard of soda-pop, but how about soda-pup?

Sodapup Can Toys are designed to be a fun and tantalizing puzzle for your pooch with openings on each end where you can insert treats. Made from a durable natural rubber compound which provides durability without sacrificing chewiness. Non toxic, biodegradable and available in three sizes. Everyone who handled these doggie cans at the studio though they were very ruggedly made, so should last a long time. They come in many sizes and start at about $10.99. 

UPDATE: I have no affiliation with this company (or any of the companies that make products I show on ABC), but Sodapup emailed to say they had set up a discount for viewers who may wish to purchase their products. The code is ABC and it can be entered at check out on their website. It is for 25% off, plus free shipping. The offer will run through the end of 2016.

I think there's a really nice thing for them to do.

http://sodapup.com/collections/originals-collection