Electronic keyboard that records sample sounds
I saw an electronic keyboard that had a mic built in; the other day. It was made so you could sing along with your music. It would have been better if the mic was used to "sample sounds." This would be a great feature for synth's. You could clap your hands, bang a bottle, or tap your pen and it would be recorded. Then you could play it back in any octave.
Reward: Product of course; and a few more lessons.