I'd like to see a space-station theme.
When they walk in there's a giant plasma TV showing the earth from space, slowly revolving. Give a perspective and a real spaceship feel to the house.
Also the contestants enter wearing full silver spacesuits, to hide their cleavages and "wacky" outfits. They have to enter an airlock where they are held until all contestants are in.
In the house, beds that slide back into the walls during the day, meaning the housemates cannot sleep during the day.
The Diary Room door would look like this
Aaron,
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