I have 11 sheets of 6mm marmox in my shed, left over from the bathroom (some areas planned for 6mm ended up being done with 20mm). I'm trying to clear out space in the shed. Any cunning suggestions for what to do with the marmox? Either using it or disposing of it - I don't want to just chuck it, and if I dispose of it I'd want to get some value back in some form. I'm not planning any more building works that would need it conventionally, and I originally bought it some time ago from a box-shifting website that's not going to be interested in having it back.
Pete