He's not really housebound, just doesn't go out unless forced to - but my future FIL is coming to stay with us for christmas this year, and I have no idea what to get him. he has virtually no interests, except the environment, so I've found a mug which shows the effect global warming will have on the oceans when you fill it with hot liquids - but I need to get something a bit better than that. his son (my 'D'P) is being useless and shrugging at every suggestion.
does anyone have any ideas? thanks in advance if you do