I'm not sure how this one hasn't been posted here before (I'm not even sure how
I haven't posted it here, because I watch this movie just about every year around this time), but since it hasn't, here it is now.
In
Home Alone 2: Lost in New York, Kevin McCallister buys a Swiss Army Knife at a toy store in New York City. You get a couple different views of it sitting on the counter while he's checking out.
Top down, looking at all the tools:
Side view. I'm guessing the white square on the side was put there to cover up the Swiss cross logo.
Back side of the knife:
Outside the store, Kevin uses the magnifying glass to look at a map of Manhattan.
Small continuity error: this scene starts with Kevin holding the knife so that side with the corkscrew is facing him, but when the camera cuts to a wider shot, the knife is turned the other way, with the corkscrew side facing away from Kevin.
Now I'm not particularly well versed on the differences between Victorinox and Wenger SAKs (in fact, I don't think I've ever owned one made by Wenger), but I have seen the magnifying glass design that Victorinox uses, so process of elimination (plus Google confirmation

) tells me this one's a Wenger.
I also don't know much about Wenger models, but if I had to guess, I'd say the knife in the movie a Wenger Champ. Looks about right to me:
Unfortunately, when he realizes that the Sticky Bandits (formerly the Wet Bandits) are standing behind him, Kevin drops his SAK, screams and runs away, leaving it on the sidewalk.

It probably would've come in handy setting up all those booby traps later, too.
Merry Christmas, ya filthy animals!