Half a croissant, on a plate, with a sign in front of it saying '50c'
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red-yellow-green light for doors

a more sophisticated "do not disturb"
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Rather than the traditional cardboard/towel/hat on that doorknob this device presents a more sophisticated level of access control.

It's a punch-through panel that has a screen on one side and a keyboard on the other. It can display pre-selected icons such as "do not disturb", "not even if there's a fire", "maid only","please come in, I'm so lonely". Alternatively the user can upload is own images and type his own text.
Voice, Feb 26 2011

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       Won't the panel have to be replaced every time you punch through it?
pocmloc, Feb 26 2011
  

       This is already partially baked insomuch as the Headmaster of St. George's Windsor used to have/has one of these with just the red and green lights labled 'Enter' and 'Engaged'. I never had the balls to graffiti over the former with 'Vacant' though.
TomP, Feb 28 2011
  

       So, basically, this has nothing to do with the title?
Alx_xlA, Mar 03 2011
  

       Strobes to filter out epileptics?
saedi, Mar 03 2011
  
      
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