James,
props are tough -- sometimes they work and sometimes they scare the heck out of the dogs. This guy doesn't seem to have any issues with them and that's always fun.
I will occasionally use props at Xmas time for my show setups and I have to be careful because not all dogs are comfortable being face-to-face with Santa or one of his reindeer

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For portraits, I always bring some props but I don't always use them. Depends on the dog.
Again, nice job.
Jim