When I was teaching a dog training class in Banff I would try and vary the things i wanted the dogs to retrieve, a toy hidden inside a bucket, an egg, plastic milk bottle, one of my favorites was for dog and owner to leave the room, I would hide the dogs toy then when the dog came back in he or she had to find it and bring it to the owner and hold until told to give. This the dogs loved and the owners found it rewarding. The hardest test for them was a recall past a cooked sausage which gave us all a good laugh. I used to use my Jack Russell to show it could be done. His face was a picture as he so wanted to eat it. We had a fun night on the run up to Christmas and i made crackers for all the dogs. The dog who in my opion had improved the most for that year got a special price. I only stop taking the class when I took ill and had planned to go back but I do not have the same time anymore and now spend my Friday nights with my OH. Before giving up we took on a man who was very keen and he seems to be making a fair job of it. I miss the chat, could never remember owners names so I called them by their dog.