Here’s something different for you.
An alarm clock, that’s also a toothbrush, with a snooze button that won’t go off until your teeth are brushed.
It seems like one would need to be lazy to an extreme degree (and on two different levels) to need this, but I could see them being pretty marketable, if the company can raise the money to get it to market.
I can’t speak to the quality of the brush itself, but it’s a clever gimmick. They have a video on YouTube that explains how it works in detail.
Would you use such a thing? Do you need such a thing?