Disguising: The year my mom wrapped our presents in their "own" paper. My brother, sister, and I each had a "specific" paper all our gifts were wrapped in. She was hoping, in vain, that we wouldn't figure out what we were getting.
"The box": The triangular shaped hospital freebie formula sample box, that was kept purely for it's ability to disguise Christmas gifts. And every year there was a rolling commentary about who had a present in that box the previous years, and what the present was.