IMHO, guarding things in the house is a separate issue from guarding the yard. What exactly is Mokey doing with the toys, food bin etc? If she's not allowing the other dogs near those things, that doesn't sound like typical Pyr guarding to me. I have to agree that you need to make sure that she understands that you control the resources and those are YOUR toys, food etc.
Thanks Ursa, now I see how those are two separate behaviors.
In the house, yes she is growling and not letting the other dogs come near the food bin or the toys. I guess this is just "bad dog" behavior and not necessarily "guardian dog" behavior!