74 results found displaying 31-33
    
cynet
 USA
Cool Pen Printer Friendly Version
I definitely like the metalic paint that is used on special made motorcycles. Though it cost about $500 a galon.
A pen may cost only a few dollars, and on paper the ink would change colors in the light.
Kids would love it.
Teachers would hate it.
Reward: A few dozen pens. 

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63°

    
Burki
 New Zealand
Mobile Phone Add Business card Printer Friendly Version
How many times does someone hand you a printed business card that you can never find when you need it? Imagine a slot on your mobile that you slip the card into that scans/copies it for future reference?
Reward: Pat on the back or maybe a paper hat? 

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24°

    
Oliver Matczak
 Germany
Dissolvable Toiletpaper Printer Friendly Version
Where i live there are lots of problems with
blockages in drain pipes, my idea is to create a dissolvable loo paper, as soon as it hits the toilet water it dissolves.
Point 1. Unessecary waste can be saved in drain pipes and canals.
Point 2. Ozone friendly.

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76°

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