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
This would work fine, except in terms of success.

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hands free ruler

 Heads up eye glass ruler
 
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A set of glasses with an electronic heads up ruler for hand free measuring. Like fighter piolots use except for carpenters and welders and taylors. Worn like reading glasses. Close one eye, look through glasses and a heads up ruler appears that electronically measures distance to object focused upon with a tiny laser and atomatically adjust the scale on the heads up display.
—Imathinker, Jul 05 2004

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       I am not even going to *ask* what you intend to measure with this...
—timbeau, Jul 05 2004
   

       lets just hope its in millimetres
—etherman, Jul 06 2004
   

       Someone recently proposed a laser projected ruler. Same end result.
—DrCurry, Jul 06 2004
   

       That's going to be an expensive pair of glasses.
Don't measure anyone's iris, please.
—phoenix, Jul 07 2004
   

       Well, if it's any good it'll have several scales available, even the semi-useful metric scales.
—bristolz, Jul 07 2004
   


 

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