Half a croissant, on a plate, with a sign in front of it saying '50c'
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Purring Paperwork

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Checks have more and more counterfeit protections on them: microprinting, woven paper, and so on. Some have a little heat-sensitive logo that you rub with your finger, and it temporarily disappears or changes color.

I want to take this last concept one step further. Print the check on a plastic film and add a miniature electronic sound module. When you rub the right spot, the check says "aaaaaaahh" or purrs like a cat.

Etymon, Aug 01 2004

Road Tunes http://www.halfbake...m/idea/Road_20tunes
[Ander, Oct 04 2004, last modified Oct 05 2004]

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       A bit bulky, isn't it?
5th Earth, Aug 02 2004
  

       But, then they might do away with the microprinting and I wouldn't be able to impress people by reading it without any sort of magnification.   

       (Edit: Yes, it does come in handy. I am great at parties; a regular barrel of laughs. You should see me write really, really small. It's a laugh riot.)
half, Aug 02 2004
  

       That must come in handy.
bristolz, Aug 02 2004
  

       //Some have a little heat-sensitive logo that you rub with your finger, and it temporarily disappears or changes color.//
Woaf! I've never seen any of these anywhere other than on the roofs and bonnets of Transformers, as a means of determining their Autobotnicity or Decepteconerry.
calum, Aug 02 2004
  

       What Ander said over there <---
Make the surface textured, run your finger nail over it. The vibrations will sound like something.
Laughs Last, Aug 02 2004
  

       //The vibrations will sound like something.//
groove-y man.
neilp, Jan 13 2005
  

       Yes there are inks on some documents that change color.   

       how about when you rub it it says "a little to the left please....oh yeah thats the spot, this is the original document....."   

       gives a whole new level of excitement for the typing pool!
Arcanus, Dec 16 2008
  
      
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