Rechargeable Sonicare toothbrush for $12

Still not fully automatic. I’d imagined you pull some sort of braided ripcord to set it going then set the thing careening round to dry your teeth, put toothpaste on, work to separate out the stuck bits, then exhibit them on the counter before cleaning them up, removing the paste, working a bit on the gums, and running out of spin. Does it plumb onto little bottles you squeeze or something instead of the water-pik business? Tiny watering cans with hay drying on top?

Still, it’s only a matter of time before there’s a permanent sort of dashcam thing you’re supposed to put in your mouth, that does regular deep periodontal dives, works up light shows if you’re caught snoring, stages adoring meal mementoes with oral biota, light and squid ink gnocchi. Maybe it helps you speak quadcopter and fill out surveys with derring-do.