I have actually had the plasterer in today to repair my walls, Maggie is now almost 15 months old and seems to be over the worst of it (touch wood) so I have braved fixing it so I can redecorate (I had better make sure it is to her taste this time ). Plaster was very much her thing but only when I was out. The things I used to stop or at least deter her were either vicks vapour rub or olbas oil. It put her right off but obviously your house pongs of it!!