From the entry form:

EAR CHANGES ONLY will be accepted on the day of the show, unless due to a clerical error. Ear changes are only allowed in the same breed, variety, and class as rabbit/s originally entered. First 4 ear changes are free. Additional ear changes will be charged $1.00 per rabbit per show.



I am assuming this means you can change rabbits entered at the last moment, as long as they are in the same class?

Are Rex judged separately according to each color? Broken vs solid?

That's how I understand it MMSD. For instance if you enter a JR Buck you can change to another JR Buck but not to a SR Buck. I think I did see one show where there was a small fee to change ear numbers but not the full entry fee. Good luck on your show.