Mad magazine fold-ins

I was browsing Razor Creative blog whilst doing some research for marketing ideas for work and came across this post on Mad magazine fold-ins. If you don't know what a fold-in is, it's the opposite of a fold-out of course! Like a center fold you get in Playboy but the opposite and a bit more clever. Anyway, the post led me to this page on The New York Times website, which has a collection of interactive fold-ins from Mad magazine. They're really fun and so clever... really makes me want to have a go at designing my own! In fact, they'd be great for a flyer at work.... hmm.... better make a note of that!