Aww yiss, sand bath!

Damn that's metal af

I would not mess with your chinchillas

I don't know about hamsters, but chinchillas have this thick, soft, delicate fur that will be ruined and probably fall out if it's in too much contact with water, as it cannot air-dry. Because of this, they take dust baths to clean out their fur. It's very helpful and a necessity, and it's also said to be very fun and rejuvenating for the chinchilla.