I think I've posted this before because it's been my dream for a long time, but I'd find a guy that travels for a living.
Then every time he leaves on a business trip, I'd have a crew tear down his house and build it again, exactly the same, only this time everything will be like half an inch smaller. The doorways, the ceilings, the square footage, everything.
Then I'd repeat this process every time he leaves town until one day he just goes insane because he thinks he's growing or his house is shrinking.