80 results found displaying 40-42
    
AaronBurns
 USA
Flexable Circular Rubber Springing Sling-Shot Printer Friendly Version
A sling shot that is completely round and made of a very thin, strong rubber, in any color, that is centered just like a Native American drum toy. Tied to a outer, plastic, round circle then, attached to a rubber sling with a plastic handle to hold onto for that added spring. You simply pull back on a rubber handle, attached to the back of the rubber circle center and let go. With the rubber center and the partial rubber handle you have twice the power in slinging objects that you trap in the center of the sling shot and when it is in the center of the sling-shot it is more accurate than the usual sling shot because it doesn't move from side to side but, just from back to forward which, will send it straight out instead of to the side, even slightly. This sling has two properties. It has the rubber, circular, center that will be extremely effective in shooting out anything fast and accurate and the partial, upper, handle that, attaches to the sling on top and a hard plastic handle at the bottom for maximum velocity and spring action. Easy to make, cheap and can be made to have different strengths so that, you could even make a weak one for kids in the house for nurf balls or shooting paper balls. You can even make one strong enough to shoot hundreds of yards. Many uses and for all ages.
Reward: Credit 

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AaronBurns
 USA
H2O Splitter Scuba Tanks Printer Friendly Version
Simply split the hydrogen and oxygen and have two useful products for under water use. You can breath the oxygen created from the splitting of the H2O and use the hydrogen as a propellent. Normally we compress the oxygen in tanks and then dive. But, with the chemicals added in on extra tank that takes in the water and splits it into oxygen and hydrogen you can stay under water a much longer time. It might be better for deeper diving as well.
Reward: Credit 

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timetraveler
 USA
Leviboard Printer Friendly Version
I myself am not too crazy about this idea (this is my first post), I have noticed that some of my friends have been falling off their skatebaords when the roads are a little rough under their feet. So if there was a little pad that attached or clipped to the board that was connected to a strong little fan, they could press down on the pad, and the harder they would push down, the stronger the fan blew. Causing the user to have a safer, (maybe) smoother ride.
Reward: maybe the product? 

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