need ideas for an invention for school invention convention

last year for the invention convention i made a hovercraft and everyone was really impressed and now this year i don't know what to do i need to keep up my reputation i just need a good idea.

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Labot20019 years ago
flux capacitor
Ah, you mean this little puppy, eh? (I know... the reference to "Back to the Future" also)
Hey, cool!
a time machine
Tanners (author)  teaaddict3149 years ago
lol i mean something i can actually do
you can do anything if you put your mind to it.... maybe you can make a doom ray. if it actually can vaporise something, then i think theyll be forced to give you the reward
No, you can't.
*sets about making doom ray...
maybe he meant "no you can't" to you can do anything if you put your mind to it.... like walk through solid objects, and be in two places at the same time :-)
Any RAY that doesn't work properly is a doom ray (doomed to failure *sigh*)
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