359 results found displaying 43-45
    
luckiegoclimb
 USA
Play ball with your dog, without you! Printer Friendly Version
If you have really energetic dogs at home, but you never have time to play with them, or you're too tired, this is perfect for you. It is a machine that plays fetch with your dog(s). Place it in a corner of your yard, put a time you want it to play, then let it loose. It has 10 tennis balls in a compartment inside it. Inside those balls are powerful magnets that get attracted to the machine when the machine runs out of balls. Like the machines you see in tennis courts, it will throw the balls in many directions at intervals of 20 seconds, plenty of time for your dog to chase them. Then it will neatly pick the balls up, leaving your yard balls-free.
Reward: get it for free, the ability to use it in a science fair without getting sued. 

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Grindstone
 Canada
Portable Negative Noise Generator Printer Friendly Version
I'm trying to find out if anyone has invented a portable negative noise generator for in the house. I'd love a small, portable machine that analyzes a noise source and then puts out a negative wave to counter it. We could put them on/in fridges and washing machines and other noisy items in the home to get those annoying sounds out of our lives.
Reward: A calm, peacefull existance. 

There are 17 replies to this idea

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64°

    
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°

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