So our cumbersome, ridiculously clumsy cat jumped up onto the table in the middle of the night, knocked a glass of water over, which soaked through a drawing my son had done. As it had the whole night to soak in we now have the whole picture perfectly reproduced onto our old (as in antique) pine kitchen table. I don't want to sand it down as the wood will end up looking new, and I like the look of the old pine, but how can I get rid of the felt tip pen marks?