Although most of the pieces would readily survive a fishes mouth, some of the feathers are potentially delicate. (Meaning wouldn't wear it to bed) In the event to damage to a feather, steam is a lifesaver! Simply boil a pot, and hold the feathers over it. Then just use your fingers to help preen the fibers back in place. The moisture will rehydrate the feather and help it return to form.
For the rabbit and other fur/hair - if you happen to get something in it (makeup, lotion, oil, etc..) no worries! You can lightly wash with water and light soap. Hand dry first then finish with a blow dryer; hand preen back into place if needed.