Of course. Go to the market to buy a bag of big salt (also called sun-dried salt, about 2 kg). Find a clean plastic bag (which can hold it) when you get home. Then put a small amount of big salt in the plastic bag, put the one to be cleaned in, tighten the bag mouth and start shaking up and down, about 40 times. Take out the plush toy and shake off the coarse salt particles stuck to the surface. You will find that the salt particles turn black and the plush toys are much cleaner.
This is because salt itself has positive and negative charges, and dirt will also have positive and negative charges. After shaking and rubbing, electricity will be generated, opposites attract, and salt will suck away dirt, making plush toys clean.