Hopelessly addicted to and distracted by your smartphone? Then lock it up. Once inside, it cannot be removed until the timer you set reaches zero.
It may look like your oven or fridge has transformed into a massive combination lock safe, but it's actually just a clever magnetic mechanical kitchen timer.
Just about every home has these exact same return air vents on the walls, except this one hides a secret compartment inside to stash away whatever you wish.
Stainless steel water bottle with a secret bottom compartment for keys, IDs, cards, cash, jewelry, stolen dinosaur DNA, or anything else you can fit in there.