Can i interest you in an alarm clock that can detect the stage of your sleep cycle, a automatic scrambled egg machine (ah the breakfomatic ...) or a 5 chambered Wankel engine?
How about A device that will shoot a chunk of corpse into low earth atmosphere and making it look like a shooting star as part of a memorial service?
I could continue for days, most more sane and practical than these, but yes I will keep my day job.