I have another idea too....
When my last lab was recovering from a knee surgery, I bought this cute DVD/video to help her enjoy the outdoors, even though she was kind of cooped up and couldn't walk that much:
http://www.amazon.com/DVD-For-.....B000UZS9JY
It takes dogs on a virtual walk, and the whole 'walk' is "as seen through a dog's eyes" with soothing music. It's actually designed to comfort doggies who are on their own for a bit while their parents are off running errands or at work etc.
I would send you mine, but I already gave it to my dog trainer guy when his doggie was battling illness.
It's around $12 on Amazon. Totally worth it. It'll keep replaying itself over and over again, in a continuous loop and most dogs love it. Highly, highly recommended to keep a lonely/nervous/anxious doggie "company" while you're out.
editing to add - here's the "blurb" on the doggie DVD from Amazon and the publisher:
"DVD For Dogs: While You Are Gone is a collection of calming video and soothing sounds for the dogs we love.
As your dog takes a virtual walk through the woods, it encounters deer, ducks, geese, wolfs,
prairie dogs, birds, horses, fish, butterflies, and more. A virtual game of fetch follows.
The imagery is complemented with soft nature sounds, music, children playing, sonic sounds only dogs hear, and short stories to create a peaceful environment for dogs who are left alone.
The auto-loop function allows the video to play all day.
Professional composer Bradley Joseph performed with multi-platinum artists Yanni and Sheena Easton for over a decade. His original compositions bring to life this incredible collection."
It's a good DVD to have on hand. If doggie is sick, you can play it. If you have to go out and are worried about doggie, you can put the DVD in etc. Most dogs like it quite a bit.