My twenty month old woke up at 6AM babbling, "I want doggy." I pilfered some scraps of wood from the building basement, pulled out a piece old jute twine. A few bits, screws and such from the tool box. Someone had given me a huge box of of little wooden wheels they were getting rid of and people are always chucking those spiral spines to make booklets (the tail). I used those thick rubber bands we save from broccoli to give the wheels tread. And, voila, a doggy she can pull about when I don't feel like walking the neighbor's dog to satisfy her fixation. Didn't cost 10cents much less $10-