Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Point of hors d'oevre

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spiked shoe

Shoes with retractable spikes
 
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You press a wireless remote and small blades swivel out of you shoes(or maybe it has to be one shoe at a time, so you can lift your foot). The blades give you a grip on ice.
A Dreamer, Dec 18 2005

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       Sort of on-demand crampons. I could see this being useful, although I wonder how long it would take the violently-minded to use them as weapons.
5th Earth, Dec 18 2005
  

       Yes, quite bad for airport security.
Zuzu, Dec 18 2005
  
      
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