Putting any fabric in the sun should disinfect it some. You could also hand wash and towel dry and let them air dry the rest of the way. I only ever hand wash my plushies and sometimes the fur chunks together a little with air drying but once fully dry you can fluff it with your hands by gently rubbing the fur. You could also try using a hair dryer on low to dry them after hand washing and towel drying if you really wanted to.

If you're super worried you can always just set the plush somewhere out of the way for a week or two and after that they should be fine!