I have old potato heads, and all the parts fit okay except for the arms. They actually go in fine, but when you put things like the video camera or the Mickey balloon in the hands, the arms fall down. I'm not sure if the Disney potato head would be able to hold those up either. I bought my parts at Mouse Gear in Epcot. They had a large selection, and it beat making a special trip to DTD just for potato head parts.