Amazon has the Kamado Joe brand Grill Expander (compatible with the Kamado Joe Classic I, II and III) for $24,89). Normally this is a pretty consistent $60,. Basically gives you another level of cooking surface to work with on your Kamado Joe.
330 reviews with an average of 4.7/5, so a well-like accessory, though it's apparently been discontinued for some reason. Enjoy.