I don't know... Mr. cookie is allowed on all the furniture, but he also doesn't have any yucky habits...
The only thing I could think of was tin foil? My dad used to do that for his cats... To keep them from jump into the baby's crib, the leather chairs etc... I don't know how well that would work with a rabbit tho, cuz I imagine they would try and chew it?
I'm sure someone else will have a better suggestion for you! Good luck!
We have the same problem, Derby has been trimming the leather furniture. Someone mentioned blocking off the area with boxes. He is so big he would simply move them, eat them or climb up and over them. Right now I have everything covered with quilts and pillows.