A machine that could create a single tiny object that has more mass then 20 large black holes combined, but without the nasty destructive gravities involved. Then, I'd like those mass points to be scattered around the Earth. And then, finally, I'd like a suit that would cancel out the effects that kind of mass would have on time.
I'd be like, the fastest person alive. Ah I know, if that were to happen we'd all probably die due to that nasty destructive gravity I mentioned. But a guy can dream, right? :B
So yeah, I wish they'd invent something that would allow me to alter the flow of time (to make me faster). I won't use it for mean pranks, pinky swear. :3