I have used some of these with Titan
Interactive Dog Toys | Dog Puzzle Toys - Dog.com
he like the puzzle toys to find treats and we have had the puzzle box and squirrel tree too.
Is he allowed to walk around at all??? Like even slowly around the house? If he can, maybe a scent game? That would tire his brain out pretty quick after a few finds.
Commander Charly Titan (GSD)-15 Jan 2010