Do those training aids they sell at Bass Pro work for training dogs to search for sheds? Id like to train one of my dogs to hunt for sheds this spring but I'm not sure where to start.

I have a 7yr old Lab/Boxer mix with a great nose but he is my wives dog and doesn't listen and is very obstinate. Or... I have my 18 month old Great Dane that listens to me very well but is young and has the attention span of well.. a puppy.

I only have one shed, and the Great Dane is currently chewing on it.

Any tips?