Picking the most iconic moment from Home Alone is like narrowing down a favorite ice cream flavor, there are so many to choose from - why limit yourself?!
It would be a grave understatement to say that Kevin McCallister was the child king of shenanigans. The entire first and second movie show him building contraptions (in mere minutes and hours) that would impress any full-grown engineer.
I'm not sure where Kevin got this knowledge of building and mechanics, but it's far beyond his years (and most of us).
One of the most inventive pranks Kevin pulls is his use of the audio from the old gangster film Angels With Filthy Souls.