T.,
I fully expected this post to be about a dog. Isn't it bizarre how kids can gnaw on everything just like puppies do? my son did this very briefly, but it was a tile top table and he was gnawing on the grout! OH the thought of it sends chills down my spine again!
I suggest removing the table all together for a few weeks, or months. the reason i suggest that, is because 2 yr olds can be so clever - i fear that you won't find anything that he/she won't try to get off. we had to remove the problem and although it was inconvenient, it helped. our table is back now and he doesn't try to eat it anymore :)