Another Devil Fruit in Dressrosa?

In the last chapter we saw Sai get turned into a toy. But something I have been wondering about since we heard that a devil fruit was responible for turning people into toys. How does turning into a toy make everyone forget who you are? being able to turn people into toys is scary and all but what if there is another devil being used in Dressrosa one to turn people into toys and one being used on everyone else on dressrosa taking away poeple's memories about that person? Also I think Kryos was turned into a toy if people don;t remember him if he even was a real person. what do you guys think?