Here is a lady that is a service dog trainer, Donna Hill. She uses her own two dogs at home to make videos for people like me that train their own dogs. You can see how dogs can get the objects out of the dryer here, as well as a couple of fun bloopers at the end. Her dogs are about 40-45 pounds. A taller dog would have an easier time, especially with smaller things that were in the back.
http://youtu.be/BgS82Mm6U1Y
