PET SAC at NY TOY FAIR 2015: Pet sacs are backpacks that attach to stuffed animals. Again, another great idea. Imagine you are a parent. You buy your kid a stuffed animal, they play with it, and they love it. Everything is great. And then its time to go to grandmas house and you need to pack. Well voila, the PET SAC has a backpack in the stuffed animals back. All you have to do is unzip it and it becomes a pet sac, a pet and a backpack. Simple idea, simple solution.