I had to look into Wikipedia to get real name for the hat (it's called "cylinder" in russian) and I still might have some parts named incorrectly - english is not my native, it's also my first instructable so please don't judge too hard. I'll greatly appreciate all corrections.
Step 1: Get playing cards and stapler
The fastest way is to go to closest pharmacy - they always have different decks for sale (for some reason I like classic Bicycle decks for these projects).
You can also buy decks in bulk in your closest Costco, BJ's club or similar.
Most popular decks have red or blue backs and regular pocker faces but if you have some special project and you know where to look, you can find black backs, white (yes, empty) faces or even some colored ones.
As for stapler, you can buy the simplest one as I did or go for signature staplers like this red swingline stapler from Office Space movie.