So when I tore out the trashed wood floor in my upstairs hallway(and the even more trashed linoleum under it), I found this hidden hole in the floor.
This was an old vent to allow heat from the kitchen to get upstairs before the house had steam radiators(the house was built before 1895). Now it is hidden by sheetrock in the kitchen, and was hidden by flooring in the hall.
While working on other renovation projects that needed finishing before replacing the hall floor I pondered what to do with this space. And finally, the perfect idea came to me.
Step 1) Buy teddy bear at Savers.
Step 2) Make the bear a sign.
Step 3) Put the bear and his sign in a bag.
Step 4) Stuff the bear in the weird hole in the floor.
Step 5) Install a quality hardwood floor in the hall, completely hiding the existence of the hole.
Step 6) Let some future person find the bear, and be deeply weirded out.
Given that the floor I pulled up was ~60 years old, there is good odds that I’m trolling someone who hasn’t even been born yet.