"Hide and Seek" is a fun game for dogs to play. "Found" toys are often much more attractive. Making an interactive game out of finding toys or treats is a good rainy-day activity for your dog, using up energy without the need for a lot of space. For example, scattering a handful of kibble in the grass or on a patterned carpet will require your dog to use his nose to find the food.
We started this whole operation to serve the people who are just like us: nuts about dogs. We're "our dogs have more elaborate parties then we do" obsessed. We eat ramen noodles while our dogs dine on organic grass-fed beef. We are disappointed when our dogs don't follow us into the bathroom. Our families think it's cause for concern. But who cares about them? We're here for you and your dog. We've never met your dog, but we know we love them.