All you need for this is puppy/dog treats and a cupcake tin. Training treats are best because they are not fatty so a pup or dog doesn't gain much weight form eating these. Place a treat in each cup and place a ball on top. That's it, let your dog or puppy have fun trying to get the treats out. It took our puppy about 20 mins to get them all and my kids enjoyed doing this activity with him and cheering him on as he tried to remove the balls.